Last updated: November 2026
Denver Zoo's internships page gives one date that matters: summer Animal Care Internships post around February 28, and each posting stays open for three weeks. Offers go out in early April and internships start in May or June. The zoo says it offers these paid internships "annually as budget allows", so a given summer can be skipped. On November 12, 2026, the Denver Zoo Conservation Alliance job board listed 5 open roles and none of them was an internship. If you're reading this in November, you're early: summer 2027 applications are expected around February 28, 2027, which means you apply in late February or March and intern the same summer.
Quick Facts
| Fact | Detail |
|---|---|
| Where to apply | The Denver Zoo Conservation Alliance job board (denverzoo.org/careers redirects there). Program details: internships page |
| Application window (2027) | Summer 2027: not open yet. Expected posting around February 28, 2027, open for three weeks (to about March 21, 2027), offers in early April 2027. Spring and fall: no animal care intakes on the current page |
| Rolling? | No. Each posting has a three-week application window set by the zoo's own calendar |
| Eligibility | At least 18. Previous animal experience for some internships. Negative TB test, background check, drug and alcohol screen and reference check. Student status and GPA: not stated |
| Duration | Full time: 32 to 40 hours a week for 12 to 16 weeks, up to 640 hours. Part time: at least 200 hours within 6 months, up to 384 hours |
| Compensation | Paid "annually as budget allows". The hourly rate isn't published on Denver Zoo's own pages |
| Return offers | Not published |
| Locations | On site at Denver Zoo, 2300 Steele St, Denver, CO (City Park). Housing isn't provided |
| # Programs | One named program, the Animal Care Internship Program, placed by department. Non-animal-care internships are "posted when possible" |
The row that matters most: the summer posting is expected around February 28, 2027 and each posting stays open for three weeks, so set a reminder now rather than applying a year ahead.
Externships are short, remote programs where you finish a real project for a real organization, usually in 4 to 11 weeks. They aren't affiliated with Denver Zoo, and they're different from the zoo's veterinary externships, which are clinical rotations for vet students. The Health Research & Data Analytics Externship with ARCeH builds data and research habits for conservation-side roles, and the Reggie Stephens Foundation AI Strategy Consulting Externship gives you a finished nonprofit project to describe in your cover letter. Explore all Externships.
What Is a Denver Zoo Internship?
A Denver Zoo internship is a paid, on-site placement in one of the zoo's animal care departments, run through the Animal Care Internship Program of the Denver Zoo Conservation Alliance (DZCA), the nonprofit that operates the zoo in Denver's City Park. Interns work full time for 12 to 16 weeks or part time for at least 200 hours, and they can earn school credit but don't have to. The zoo says the program is "very competitive" and that not every applicant gets an interview. DZCA has also posted non-animal-care internships, including conservation roles, when funding allows.
When Do Denver Zoo Internship Applications Open for 2027–2028?
Denver Zoo publishes its own internship calendar: the summer intake posts on February 28, applications are open for three weeks, offers go out in early April and internships start in May or June. Until 2024 the page also listed spring and fall intakes (posting dates October 15 and June 15), but since January 2025 it lists summer only. So summer 2027 applications are expected to open around February 28, 2027 and close about three weeks later. Those 2027 dates are projections from the zoo's published calendar, and the zoo runs the program only as budget allows.
Applications aren't open yet. On November 12, 2026, the DZCA job board listed 5 open roles (horticulture, custodial, conservation leadership and philanthropy) and no internships. This window is when you build the proof.
Prepare. Log animal hours through volunteering or work, since some internships require previous animal experience. Draft the required cover letter, and check the board from January for any conservation or other non-animal-care internships.
Expected: summer 2027 Animal Care Internships post on the DZCA job board. Each posting accepts applications for three weeks, so the window should close around March 21, 2027.
Expected: offers go out. Only the applicants the zoo wants to interview are contacted; others get status updates by email. Selected interns then complete the TB test, background check and drug screen.
Internships begin: 32 to 40 hours a week for 12 to 16 weeks, or a part-time schedule of at least 200 hours within 6 months.
How to read this page: our dates come from tracking previous recruiting cycles and daily posting data. Treat them as informed estimates based on historical patterns, not confirmed dates. The company's official careers page is always the most current source. If a role is posted there, go by that, even if this page suggests the window hasn't opened yet.
Why You Must Apply the Week Applications Open
This is a short window, not rolling review. Denver Zoo's own page says applications are accepted for three weeks after each posting, so a summer posting that goes up around February 28 should close around March 21. Miss those three weeks and there's no later summer intake to fall back on: the zoo dropped its spring and fall animal care cohorts in early 2025. The cover letter is required, so have a draft ready before the posting appears and apply in the first week.
Which Denver Zoo Internship Programs Should You Target?
Denver Zoo runs one named internship program and places interns by department. The table uses the zoo's internships page, read November 12, 2026, and archived copies of that page.
| Program | Focus | Duration | Key details |
|---|---|---|---|
| Animal Care Internship, full time (summer 2027, expected) | Work inside one animal care department; departments vary each year with staff capacity | 32 to 40 hrs/week for 12 to 16 weeks, up to 640 hours; May or June start | Paid as budget allows; rate not published on the zoo's own pages; 18+ |
| Animal Care Internship, part time | Same program on a reduced schedule | At least 200 hours within 6 months, up to 384 hours | Same eligibility and screening; school credit optional |
| Non-animal-care internships (ad hoc) | DZCA has also posted non-animal-care conservation internships on its job board when funded | Set per posting | The zoo says these "will be posted when possible"; watch the board from January |
Interns can hold one internship at a time and complete at most two DZCA Animal Care Internships, never twice in the same department. The internships page is the official source for each year's calendar.
What Are the Eligibility Requirements?
These come from Denver Zoo's internships page. The zoo doesn't publish a GPA cutoff or a class-year rule.
• Age: at least 18.
• Experience: "Previous animal experience is required for some of our Animal Care Internships."
• Health: proof of a current negative TB test before you start; the zoo helps interns get one.
• Screening: background check, drug and alcohol screen, and reference verification.
• Student status: not stated; the page doesn't require current enrollment.
• GPA and work authorization: not stated on the zoo's own page.
• Limits: one internship at a time, at most two in total, and not twice in the same department.
• Housing: not provided.
Do You Need to Be a Current Student?
The zoo's page doesn't say so. It sets an age floor of 18 and screening steps, and it says internships "can be completed for credit but do not have to be", which leaves room for applicants who aren't earning credit. The real filter is experience: some departments want previous animal experience, so hours from volunteering, shelters, farms or vet clinics matter more than class year.
What Skills Does Denver Zoo Look For, and How Do You Build Them?
Denver Zoo hasn't left enough readable internship postings to count skills: no Animal Care intern posting could be recovered from its job board or archives. What the zoo's own page asks for is clear, though. Applicants need a cover letter explaining their interest and what they hope to gain, some departments want previous animal experience, and every intern clears a TB test, background check and drug screen. Full-time interns commit 32 to 40 hours a week for up to 16 weeks.
Note: We didn't chart skills for Denver Zoo because fewer than three real internship postings could be read. The requirements above come from the zoo's internships page.
How Is Demand for Environmental Interns Moving Right Now?
Environmental intern postings · Jul–Oct 2026
all internships 2.5×
For Denver Zoo applicants: on November 12, 2026 the DZCA job board listed 5 openings and none was an internship. The zoo's calendar puts the summer Animal Care posting around February 28.
Daily US job-posting counts, Jul–Oct 2026; each bar is that month's daily average. Growth = October vs July; “all internships” = the 48 intern searches tracked across the whole period. Covers under half of US postings; shows direction, not market size.
Build These Skills Before You Apply
Each row starts from something Denver Zoo's own page asks for. Only some of it can be built through a remote Externship.
| Skill (from real JDs) | JD evidence | Externship that builds it |
|---|---|---|
| Written communication (cover letter) | Internships page: a cover letter is required, explaining your interest and what you hope to gain | Reggie Stephens Foundation AI Strategy Consulting |
| Data and research (conservation-side roles) | DZCA has also posted non-animal-care conservation internships on its job board when funded | Health Research & Data Analytics with ARCeH |
| Hands-on animal experience | Internships page: "Previous animal experience is required for some of our Animal Care Internships" | No Externship covers this. Build it through volunteering, shelters, farms or vet clinics |
No Externship teaches animal husbandry. The Externships above cover the writing and research side; hands-on animal hours have to come from volunteering or work.
What Is the Denver Zoo Application and Interview Process Like?
Denver Zoo's page lays out the steps but not the interview format.
1. Watch the board. Summer Animal Care Internships are expected on the DZCA job board around February 28, 2027.
2. Apply within three weeks. Submit the online application with the required cover letter. Letters of recommendation are optional.
3. Wait to hear. Only the most qualified applicants are contacted for interviews; others get status updates by email. Interview rounds and format aren't published.
4. Offer. Offers go out in early April.
5. Clear screening. Before a May or June start: negative TB test, background check, drug and alcohol screen and reference verification.
The zoo doesn't publish an acceptance rate or class size.
What Students on Reddit Say
Reddit discussion of Denver Zoo internships is thin. One r/Zookeeping thread from 2024 has first-hand comments, paraphrased below.
A 2024 applicant said they emailed the zoo on the day internships were due to open and were told internships weren't happening for the foreseeable future. Weeks later a paid hoofstock internship appeared, posted on the AZA site, so they told others to watch for it.
In the same thread, the original poster pointed out that Denver Zoo's seasonal jobs are separate from its internships, and said they had applied for volunteering, a seasonal role and the hoofstock internship to get a foot in the door.
How Do You Stand Out for a Denver Zoo Internship?
First, bring animal hours. Some departments require previous animal experience, and volunteering or shelter work is the most direct way to get it before February. Second, write the cover letter for the department that posts, not a generic one, since the zoo asks what you want to gain. Third, apply in the first week of the three-week window and have your TB test plan ready so screening doesn't delay a May or June start. The zoo doesn't publish a conversion rate.
What Other Companies Should You Consider?
Denver Zoo applicants often weigh other zoos and conservation employers:
- Nashville Zoopaid 12-week internships with three cohorts a yearGuide →
- Lincoln Park Zoopaid hourly internships in Chicago, posted one role at a timeGuide →
- Bronx ZooWildlife Conservation Society internships with stipends across its New York parksGuide →
- Smithsonian Institutioninternships across its museums and the National Zoo in Washington, DCGuide →
- World Wildlife Fundconservation nonprofit with policy, science and communications internshipsGuide →
Our nonprofit and social impact internships guide for summer 2027 covers the wider set of conservation groups, museums and public-interest employers.
FAQ
Can I still apply for a summer 2026 Denver Zoo internship?
No. The zoo's calendar put the summer 2026 posting in late February 2026, so that window closed long ago, and on November 12, 2026 the DZCA job board listed no internships at all. The next intake is summer 2027: the zoo's calendar puts the posting around February 28, 2027, with three weeks to apply and offers in early April.
When do Denver Zoo internship applications open for summer 2027?
Around February 28, 2027, expected. Denver Zoo's internships page lists February 28 as the summer posting date, with applications open for three weeks and offers in early April. Those 2027 dates are projections from the published calendar, and the zoo says it runs the program as budget allows, so check the board.
Are Denver Zoo internships paid?
Yes, when funded. Denver Zoo says it offers paid Animal Care Internships "annually as budget allows". The hourly rate isn't published on Denver Zoo's own pages, so treat any figure you see on job aggregators or old wikis with caution and check the posting itself when it goes up on the DZCA job board.
What are the requirements for a Denver Zoo internship?
You must be at least 18. Some departments require previous animal experience. Before starting, interns need a current negative TB test and must pass a background check, a drug and alcohol screen and reference checks. The zoo's page doesn't state a GPA cutoff, a class-year rule or work authorization requirements.
How many hours do Denver Zoo interns work?
Full-time interns work 32 to 40 hours a week for 12 to 16 weeks, up to 640 hours. Part-time interns complete at least 200 hours within 6 months, up to 384 hours. You can hold one internship at a time and complete at most two, not in the same department.
Does Denver Zoo offer spring or fall internships?
Not for animal care right now. Until 2024 the zoo's page listed spring and fall intakes, but since January 2025 it lists summer only. Non-animal-care internships, such as conservation roles, may post at other times when funded, so check the DZCA job board from January onward.
Does Denver Zoo provide housing for interns?
No. The zoo's internships page says housing isn't provided, so plan your own place in Denver. Full-time interns commit 32 to 40 hours a week on site at the zoo in City Park, so budget for a full summer in the city if you're coming from outside Colorado.
Can I get school credit for a Denver Zoo internship?
Yes, if your school allows it. The zoo says its internships "can be completed for credit but do not have to be", so credit is optional. Credit doesn't replace pay: the zoo describes the Animal Care Internships as paid when budget allows, and your school decides how credit works.
Denver Zoo's summer 2027 Animal Care Internships are expected to post around February 28, 2027, with three weeks to apply. A remote Externship gives your cover letter a finished project to point to before then.
About the Author
Bifei Wang has spent 17 years focused on human flow and the growth of young professionals, spanning international education, career training and coaching, and recruitment process outsourcing. Over 7 years at Extern, he has had one-on-one sessions with thousands of students exploring careers in consulting, finance, tech, marketing, and data, giving him a firsthand view of how the job market has shifted for early-career professionals and what it actually takes to break in.
