Why do cats wag their tails? Cats are extremely expressive, and much of what they are expressing comes from their tail.

The suckers are also packed with sensory receptors that allow the octopus to taste and smell things that they touch—like combining a hand with a tongue and a nose. The researchers believe the ...

White-throated sparrows teach each other new songs on migration stop-overs. Dainty Tennessee warblers make unexpectedly long stops in Quebec’s semi-urban forests to replace their flight feathers.

House G.O.P. Floats Medicaid Cuts and More to Finance Trump’s Huge Agenda President Trump wants a massive tax cut and immigration crackdown bill. Republicans must decide what to cut to help pay ...