Hormone alters electric fish's signal-canceling trick

During the rainy breeding season, the underwater "conversation" among electric fish changes. Fish revved up to make a match broadcast slightly different signals to advertise their presence and identify compatible mates.

Arctic terns may navigate climate dangers

Arctic terns—which fly on the longest migrations of any animal on Earth—may be able to navigate the dangers posed by climate change, new research suggests.

page 7 from 40