Life as We Know It
Dinosaur gangs, psychedelic fish and long-distance elephant calls
- By Amanda Bensen, Joseph Caputo, T.A. Frail, Megan Gambino and Sarah Zielinski
- Smithsonian magazine, May 2009
Name: The Peruvian warbling antbird, Hypocnemis peruviana.
Two's Company: Antbirds live in pairs. They defend their territories from other antbirds by singing complex duets to signal their combined strength.
Three's Trouble: But when an unattached female enters a pair's territory, you can forget about such harmony, a study from the University of Oxford says. Once the male starts warbling, his partner launches into a song that interferes with his—a clear attempt, the researchers say, to ruin any overture to the unattached female.