How do species change in nature?
What steps do these arctic birds take to make themselves at home?
What's behind an animal's change from egg to adult?
Look and learn: How do scientists collect detailed genetic code?
Look and learn: All 40,000 species of true bugs share common features.
See what kids asked and what the scientist revealed.
By looking at an animal's body, what clues can we find about how an animal lives?
Learn how every kind of animal has its own way of surviving.