Phoenix is believed to be home to the world's largest colony of rosy-faced lovebirds outside of their native Africa.

KWONG: Oh. OK, so you found out in your research - by tracing the phylogenetic tree of kissing through primates, you found out that kissing was likely present in the ancestor of all apes who lived 21 ...

Lindsay and Katakturuk, a pair of Hudsonian whimbrels, reunite every year, regardless of the distance or odds.

Young elephants have a lot to learn—what to eat, what to avoid, how to behave around others. When they grow up around their mother and aunts, their development into well-behaved adults may seem ...

Microscopic mites are part of human biology. Some live harmlessly in our pores but others can trigger allergies, inflammation ...