Dr. Marisa Tellez
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croctellez.bsky.social
Dr. Marisa Tellez
@croctellez.bsky.social
Croc researcher, wildlife conservationist, predator advocate & proponent of wildlife coexistence. Founder and Director of Crocodile Research Coalition
Gilly auditioning for the next movie in need of a crocodile
December 18, 2025 at 2:10 PM
If it bites you, it’s venomous. If you bite it, it’s poisonous
December 15, 2025 at 2:51 PM
A good meal can go a long way!

Given crocs are ectothermic, they don’t need to eat everyday. And if they take down large prey, they can be satisfied for up to 3 weeks. Even in the wild they can go months without food as long as they have good fat reserves.
December 12, 2025 at 3:21 PM
Crocs living in caves is some weird science 😉
December 10, 2025 at 2:25 PM
Crocs don’t chew, so they use other means to tenderize and tear their food
December 9, 2025 at 3:40 PM
Auggie used to be terrified of people given the abuse he received for tourist photos. Now, he is confident&has a sense of security.

Don’t forget, Mondays at 730pmCST I’ll be going live on Instagram to talk croc & anything else about the scientific world!
December 8, 2025 at 2:08 PM
This croc was attacking dogs given its relatively easy prey for its poor eyesight. But the croc isn’t the problem, people are. Water pollution is causing eyesight issues & people feeding the croc created a perfect storm of conflict.
December 5, 2025 at 2:07 PM
Crocodylians are unique relative to other animals as they have a 4 chambered that can convert to a 3 chambered heart. And that my friends, is some cool and #weirdscience
December 3, 2025 at 3:12 PM
Monday, Dec 1 at 730pm CST on Instagram I’ll be going live so we can talk conservation, wildlife and science!
December 1, 2025 at 3:19 PM
Savannah showing of her training skills AND her good side 😂
November 26, 2025 at 3:14 PM
The real life of a Wildlife Biologist
November 19, 2025 at 6:11 PM
Crocs are semi-aquatic predators, but some species are a bit more terrestrial than others, like Morelet’s crocodiles.
November 12, 2025 at 3:01 PM
Loved the company while working on my new manuscript
November 11, 2025 at 3:20 PM
Is that strut turning you on?
Gilly is a 3.3m, male Morelet’s crocodile, and one of the star wildlife ambassadors @crocresearchcoal.bsky.social
Join the CRC Adopt-A-Croc program! When you adopt one of our croc ambassadors, you receive personalized updates. Head to the CRC website for more info
November 5, 2025 at 3:02 PM
“What’s one of the most unforgettable moments in field research for you?”
Answer: Getting vomited on by a 10ft crocodile exorcist style, and then having your research assistant pick parasites off of you.
November 3, 2025 at 2:28 PM