![Science Trek](https://image.pbs.org/contentchannels/uR88rxa-white-logo-41-zGZrjQE.png?format=webp&resize=200x)
Animal Adaptation: It's Artificial
Clip: Special | 1m 4sVideo has Closed Captions
Why are there big dogs like Great Danes and small dogs like Toy Poodles? Find out!
Not all animal adaptations are because of a natural process. We have hundreds of different breeds of dogs because of artificial selection. Find out why big dogs and small dogs exist.
Science Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by Sparklight, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.
![Science Trek](https://image.pbs.org/contentchannels/uR88rxa-white-logo-41-zGZrjQE.png?format=webp&resize=200x)
Animal Adaptation: It's Artificial
Clip: Special | 1m 4sVideo has Closed Captions
Not all animal adaptations are because of a natural process. We have hundreds of different breeds of dogs because of artificial selection. Find out why big dogs and small dogs exist.
How to Watch Science Trek
Science Trek is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
![Science Trek](https://image.pbs.org/curate/2bc984e5-101b-457d-b711-13c3a3043211.jpg?format=webp&resize=860x)
Science Trek
Science Trek is a place where parents, kids, and educators can watch short, educational videos on a variety of science topics. Every Monday Science Trek releases a new video that introduces children to math, science, technology, engineering, and math (STEM) career potentials in a fun, informative way.Animal Adaptation: It's Useless, or Is it?
Video has Closed Captions
Why do Ostriches have wings? They’re vestigial structures and you have a few of those too (1m 4s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipScience Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by Sparklight, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.