Animals
-
AnimalsEven deep down, the right whales don’t sink
A right whale may weigh some 70 tons, but unlike other marine mammals studied so far, it tends to float rather than sink at great depths.
By Susan Milius -
AnimalsIt’s a snake! No, a fish. An octopus?
An as-yet-unnamed species of octopus seems to be protecting itself by impersonating venomous animals from sea snakes to flatfish.
By Susan Milius -
AnimalsBig woodpeckers trash others’ homes
Pileated woodpeckers destroy in an afternoon the nesting cavities that take endangered red-cockaded woodpeckers 6 years to excavate.
By Susan Milius -
AnimalsWhen rare species eat endangered ones
To cut down on their salmon smolt catch, Caspian terns were encouraged to move from one island to another in the Columbia River.
By Susan Milius -
AnimalsOops. New feathers turn out lousy
Going to the trouble of molting doesn't really get rid of a bird's lice after all.
By Susan Milius -
AnimalsStinking decorations protect nests
The common waxbill's habit of adorning its nests with fur plucked from carnivore scat turns out to discourage attacks from predators.
By Susan Milius -
Animals20/20 lenses coat body of sea creature
The skeleton of brittlestars doubles as an array of optically precise lenses that rival plastic microlenses designed by engineers.
-
AnimalsSmart tags show unexpected tuna trips
The first report on Atlantic bluefin tuna wearing electronic tags reveals much more dashing across the ocean than expected.
By Susan Milius -
AnimalsBat bites bird. . .in migration attacks
The largest bat in Europe may hunt down migrating birds.
By Susan Milius -
AnimalsRoach gals get less choosy as time goes by
As their first reproductive peak wanes, female cockroaches become more like male ones, willing to mate with any potential partner that moves.
By Susan Milius -
AnimalsDon’t look now, but is that dog laughing?
Researchers have identified a particular exhalation that dogs make while playing as a possible counterpart to a human laugh.
By Susan Milius -
AnimalsCondor chicks hatch in zoo and wild
Newly hatched California condor chicks indicate that reproduction is again taking place in the wild.
By Janet Raloff