Animals
- Life
Evolution of mammalian monogamy remains mysterious
Two large studies reach opposing conclusions about why males stay with females.
- Animals
Oxygen boost aided carnivore evolution in Cambrian explosion
Atmospheric change and rise of predators caused burst in complexity of life.
- Animals
Eye-tracking cameras show peahens’ wandering gaze
Data show that female birds are not so riveted by their suitors’ magnificence
- Animals
Dolphins name themselves with a whistle
The marine mammals respond only to their own handles.
- Animals
Fattened livers prep white sharks for extreme migrations
The organ's reserves enable a long journey from waters off California to Hawaii and back, tracking data suggest.
- Animals
Sponges boom thanks to Antarctic ice shelf bust
Previously thought to grow at a slow pace, the sea creatures exploded in number.
- Animals
Hawkmoths squeak their genitals at threatening bats
Sounds of an approaching predator inspire ultrasonic rasping in insect prey.
- Animals
Highlights from the Evolution 2013 meeting
Selections from the meeting include a natural fish experiment, terrapins' light displays and why a variety of eye colors persist in people, presented June 21-25 in Snowbird, Utah.
- Animals
Gut microbes may put barrier between species
Wiping out gut bacteria in wasps saves crossbred offspring from death, suggesting that microbes may play a role in speciation.
- Animals
Honeybees use right antennae to tell friend from foe
Asymmetry in sense of smell alters insects' behavior in lab tests.
- Animals
Cicadas’ odd life cycle poses evolutionary conundrums
Scientists are getting an idea about the odd family tree of periodical cicadas, how the insects synchronize their life cycles and why they breed side-by-side with others unsuitable for mating.
- Animals
Lemurs’ group size predicts social intelligence
Primates that live with many others know not to steal food when someone is watching.
