6,702 results
- Health & Medicine
The Seeds of Malaria
By studying the molecular footprints of evolution in parasites and human hosts, geneticists are casting light on when and how malaria became the menace it is.
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Senior bees up all night caring for larvae
Honeybees turn out to be the first insect known to change circadian rhythms just because of a social cue, a crisis in the nursery.
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Phew! Orchid perfume turns revolting
Orchids that can smell so alluring that bees try to mate with them can also smell repulsive to the insects.
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How spiny lobsters make scary noises
Spiny lobsters make alarm and protest sounds by drawing their leathery plectra—protrusions at the base of each anntenna—across scaley ridges below their eyes, much like a violin bow pulling across a string.
- Paleontology
Early Mammal’s Jaw Lost Its Groove
A tiny fossil skull found in 195-million-year-old Chinese sediments provides evidence that crucial features of mammal anatomy evolved more than 45 million years earlier than previously thought.
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Flood’s rising? Quick, start peeing!
Malaysian ants that nest in giant bamboo fight floods by sipping from water rising inside and then dashing outdoors to pee.
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Catfish can track fish wakes in the dark
Infrared photography has revealed that catfish can stalk their prey by following wakes underwater.
- Ecosystems
Tadpole Science Gets Its Legs . . .
The amazingly complex tadpole now shines in ecological studies.
- Health & Medicine
Ancient Estrogen
A jawless fish ancestor may have revealed the most ancient of hormones and how current hormones evolved from it.
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Repression tries for experimental comeback
A laboratory experiment finds that people have difficulty remembering words that they have intentionally tried to forget, providing support for Sigmund Freud's controversial concept of repression.
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A Fly Called Iyaiyai
All that Latin has its light side.
- Animals
Gimme, Gimme, Gimme!
Hungry chicks cheeping in their nest have inspired a whole branch of scientific inquiry.
