What is a mammal? Can all birds fly? How are fish able to breathe? Designed specifically for younger students, this active, hands-on program is a unique introduction to mammals, birds, and fish for ...

A study published in the journal PLOS One detailed the finding of a Stone Age grave in Finland where a child was buried with animal hair and bird feathers ... that the fur could have been part ...

This story appears in the October 2017 issue of National Geographic magazine. From scales to feathers to fur, vertebrates clothe themselves in a dazzling variety of textures and hues. But ...