Life
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We summarize the week's scientific breakthroughs every Thursday.
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EcosystemsEmpty Nets
New research has begun challenging long-held assumptions about the consequences for fish stocks of harvesting the biggest fish first.
By Janet Raloff -
EcosystemsPesticide makes bees bumble
The pesticide spinosad, previously thought safe for bees, may damage their ability to forage for nectar.
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AnimalsNew Mammals: Coincidence, shopping yield two species
Researchers have identified a new species of monkey in Africa and a rodent in Asia that belongs to a new family among mammals.
By Susan Milius -
AnimalsBuilt for Blurs: Jellyfish have great eyes that can’t focus
Eight of a box jellyfish's eyes have superb lenses, but their structure prevents them from focusing sharply.
By Susan Milius -
AnimalsAlive and Knocking: Glimpses of an ivory-billed legend
New observations confirm that the famed ivory-billed woodpecker has not gone extinct after all.
By Susan Milius -
EcosystemsDecades of Dinner
Sunken whale carcasses support unique marine ecosystems that display stages of succession and change, just as land ecosystems do.
By Susan Milius -
EcosystemsWhere Tuna Go: Atlantic fish mix for feeding, not spawning
The largest high-tech tag study yet of Atlantic bluefin tuna suggests that two groups mix on feeding grounds but spawn on opposite sides of the ocean.
By Susan Milius -
PaleontologyEarly mammal had newfangled fangs
A tiny mammal that lived in Colorado about 150 million years ago had hollow teeth that lacked enamel, a characteristic that didn't reappear in mammals for another 100 million years.
By Sid Perkins -
EcosystemsAmbush Ants: Beware the moldy patch on that branch
Tiny tropical ants build shaggy platforms on plants and hide underneath them, poised to reach out and capture insects that may be far larger than themselves.
By Susan Milius -
AnimalsFunny Walks: Cranes bob, bob, bob along when hunting
The jerky neck motions of a whooping crane may help it spot food by keeping its head motionless about half the time.
By Susan Milius -
PaleontologyEgg-Citing Discovery: Dinosaur fossil includes eggshells
The first-ever find of shelled eggs inside a dinosaur fossil bolsters ideas about the reptiles' reproductive physiology.
By Sid Perkins -
AnimalsFish Din: Reef clamor attracts young fish settlers
When looking for a home, young fish seem to prefer a reef that's alive with the sounds of shrimp and fish rather than a quieter environment.
By Susan Milius