Salmon excavate streambed holes in which to lay eggs, setting off a chain of events that has surprisingly large geographical effects.
Although abundant in captivity, the salamander has nearly disappeared from its natural habitat—and that is a problem
The crested pigeon, found in Australia, has a modified wing feather that helps produce an alarm signal sound to warn other birds when there's trouble.
Newfound fossils reveal what forests might look like as they march northward in today's warming world
Its destructive eruptions may help researchers better understand mass extinctions
The Bryde's whale has come up with a passive but more efficient feeding strategy in the hypoxic waters of the Gulf of Thailand.
Scientists are teaming with Andean locals to solve the enigma of a mysterious form of writing
A new theory says it’s due to the first sexual conflict, which happens when the evolutionary interests of males and females do not coincide
In a sample of 98 woolly mammoth remains, researchers found that 70 percent were male—which suggests males were more likely to die accidentally. Christopher Intagliata reports.
An isolated group of orangutans in Sumatra is the first new great ape species described since the 1920s, and could be the most critically endangered.
The wood tiger moth is the first species known in which fluids from various parts of the moth’s body each target a different type of predator. Jason Goldman reports.
Hints emerge that past environments could have influenced psychiatric disorders
A recent study has stoked concerns about flying bugs
Feathered carnivore was dark on top and light underneath, with a raccoon-like face.
Stephen Asma, professor of philosophy at Columbia College Chicago and author of On Monsters: An Unnatural History of Our Worst Fears, talks about our enduring fascination with monsters.
Wolves appear to have better cooperation skills than dogs—unless the pups partner up with humans. Karen Hopkin reports.
An extinct monster fish shows that, yes, evolution could be that crazy
Great tits in the U.K. have developed longer beaks, possibly to gain access to bird feeders
Jellyfish exhibit signs of a sleep state, which could mean that sleep predates the evolutionary development of central nervous systems.
Evolutionary differences blamed for squeezing out female researchers