Physiology
- Animals
Embryos in eggs move to get comfy
Even before hatching, Chinese alligators, snapping turtles and some relatives can shift toward favorable temperatures.
- Animals
Sloths, moths, algae may live in three-way benefit pact
Insects and green slime may justify the slow mammal’s risky descent from trees.
- Animals
Smoker’s breath saves caterpillars’ lives
Larvae of the tobacco hornworm caterpillar exhale nicotine, driving away predatory spiders.
- Life
Year in Review: Gift of steroids keeps on giving
Mouse muscles stay juiced long after doping ends.
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- Animals
Lizard breath has surprising birdlike flow
Decades of assumptions may be wrong about the evolution of reptile lungs.
- Animals
How the ghost shark lost its stomach
The lack of a digestive organ in fish and other animals is linked to genetics.
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- Animals
Insect form of sexual frustration takes toll
Smelling female fruit flies but not mating with them can actually shorten males’ lives.
- Animals
How ticks get under your skin
A close look at a tick’s mouthparts reveals enviable burrowing tools.
- Life
Steroids boost muscles for the long haul
Experiments in mice suggest that effects don’t end when doping does.
- Health & Medicine
Mice lose the blues quickly with experimental drug
Studies in mice point to new, fast-acting antidepressants.
