Animals
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Animals
Sex—perhaps a good idea after all
A family of mites may be the first animal lineage shown to have abandoned sexual reproduction and then reevolved it millions of years later.
By Susan Milius -
Animals
Egg Shell Game
Birds apparently cheat chance when it comes to laying eggs that contain sons or daughters.
By Susan Milius -
Animals
Spider blood fluoresces
Among spiders, fluorescence under ultraviolet light seems to be a widespread trait.
By Susan Milius -
Animals
Living Fossil: DNA puts rodent in family that’s not extinct after all
The Laotian rock rat, which is very much alive, belongs to a rodent family that supposedly vanished 11 million years ago.
By Susan Milius -
Animals
Killer mice hit seabird chicks
A surveillance video shows a worrisome sight: house mice nibbling to death rare seabird chicks on a remote island breeding colony.
By Susan Milius -
Animals
Too Few Jaws: Shark declines let rays overgraze scallops
A shortage of big sharks on the U.S. East Coast is letting their prey flourish, and that prey is going hog wild, demolishing bay scallop populations.
By Susan Milius -
Animals
Honey, I Ate the Kids
Some of the most devoted parents in the animal kingdom routinely devour some of their own children.
By Susan Milius -
Animals
It’s a Girl: Atlantic mystery squid undergoes scrutiny
To scientists' surprise, a huge, deep-sea, gelatinous squid formerly reported only in the Pacific Ocean has turned up half a world away.
By Janet Raloff -
Animals
Mafia Cowbirds: Do they muscle birds that don’t play ball?
A new test offers the best evidence yet that cowbirds retaliate against birds that resist their egg scams.
By Susan Milius -
Animals
Snail Highways: By following trails, periwinkles save slime
A snail that follows another snail's slimy path saves energy by not having to secrete so much mucus.
By Susan Milius -
Animals
Science behind the Soap Opera
Tight family groups of meerkats in Africa's arid lands offer a chance to see the costs, as well as the charms, of cooperation. With audio.
By Susan Milius -
Animals
Bird Plans: Jays show foresight in breakfast menus
The strongest evidence yet that animals plan ahead may come from western scrub jays preparing for their morning meals.
By Susan Milius