Animals
- Animals
Crabs guard coral from army of sea stars
Coral guard-crabs proved their worth during a 2008 outbreak of crown-of-thorns sea stars, with many successfully protecting their coral from being eaten.
- Animals
Monarch butterflies’ ancestors migrated
The earliest monarch butterflies originated in North America and were migratory. Some of the insects later lost that ability as they moved into the tropics, a genetic analysis finds.
- Animals
Baby fish are noisier than expected
Gray snapper larvae may be able to communicate in open water using tiny knocks and growls.
- Animals
Dolphins appear to perceive magnetic fields
Bottlenose dolphins take less time to start exploring a magnetized block, suggesting they can sense magnetic fields.
- Animals
Videos hint at why tree bats may die at wind turbines
Using heat-sensitive cameras, scientists were able to watch how tree bats interact with wind turbines and determine what behaviors may lead to their deaths.
- Animals
Blind cavefish got no (circadian) rhythm
Eyeless Mexican cavefish have lost their circadian rhythm and become more efficient in the dark, a new study finds.
- Animals
Even on remote islands, busy ports mean more invasives
Islands with lots of trading ties are more likely to be colonized by invasive species, even when they are geographically remote, a new study of anoles reveals.
- Life
Fledgling birds change rules for caterpillar color
An unusual experiment shows that larvae lose the advantage of warning colors during the seasonal flush of naïve predators.
- Animals
Sneaky little giraffe weevils beat big rivals
A little stealth gives smaller giraffe weevil males a leg up when competing with big ones for mates.
- Animals
Chimps raised among humans may have problems as adults
Chimpanzees taken away from their mothers and raised to be pets or entertainers have problems relating to other chimps later in life.
- Ecosystems
‘Where Do Camels Belong?’ explores invasive species
Ecologist Ken Thompson takes a closer look at the impacts (or lack thereof) of invasive species.
- Math
Sharks’ hunting paths may not be driven by math
Penguins, tuna, sharks and other marine hunters have been shown to use math to find food. But simulations suggest the behavior is a result of rough water, not complex calculation.
