Life

Animals

Single singing male toad seeks same

Male spadefoot toads of the Spea multiplicata species evaluate male competitors by the same criterion females use.

Ecosystems

Trust That Bird? A bit of future-think lets jays cooperate

A blue jay will cooperate with a buddy for mutual gain in food despite opportunities to betray the partnership.

Animals

Frogs Play Tree: Male tunes his call to specific tree hole

Borneo's tree-hole frog may come as close to playing a musical instrument as any wild animal does. [With audio file.]

Animals

Hawkmoths can still see colors at night

For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.

Paleontology

Forged fossil is a fish-eating fowl

Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.

Animals

Mad Deer Disease?

Chronic wasting disease, once just an obscure brain ailment of deer and elk in a small patch of the West, is turning up in new places and raising troubling questions about risks.

Ecosystems

Worm Attacks: Invading earthworms threaten rare U.S. fern

An unusual study of the effects of invading earthworms on North American plants finds that the exotics might be on the way to killing off a rare fern.

Animals

The whole beehive gets a fever…

When bee larvae are fighting off disease, the nest temperature rises, so the whole hive gets a fever.

Animals

Ear for Killers: Seals discern foes’ from neighbor-whales’ calls

Harbor seals eavesdrop on killer whales and can tell the harmless neighborhood fish eaters from roving gangs with a taste for fresh seal.

Animals

Tadpoles kill by supersuction

A high-speed video shows tiny African tadpoles that catch their prey in a manner unlike that used by any other frog larvae: by shooting out a tubular mouth for superfast suction.

Animals

Lizard’s Choice: Mating test pits physique versus domain

When she decides to move in, is it him or is it his real estate?

Plants

X-rayed Flowers

For new insights into the delicate architecture of flowers, take an X-ray view. Albert G. Richards, who taught dental radiography at the University of Michigan, presents a gallery of unfamiliar views of familiar flowers, from the hidden archways of an iris to the complex plumbing of columbine spurs. Go to: http://www-personal.umich.edu/~agrxray/gallery.html