News tagged with american naturalist

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Study: Sea stars bulk up to beat the heat

A new study finds that a species of sea star stays cool using a strategy never before seen in the animal kingdom. The sea stars soak up cold sea water into their bodies during high tide as buffer against potentially damaging ...

Nov 17, 2009 not rated yet 0

Spread your sperm the smart way

(PhysOrg.com) -- Attractive males release fewer sperm per mating to maximise their chances of producing offspring across a range of females, according to a new paper on the evolution of ejaculation strategies. The findings ...

Jul 09, 2009 2.8 / 5 (4) 0

When industrious ants go too far

Nature is full of mutually beneficial arrangements between organisms—like the relationship between flowering plants and their bee pollinators. But sometimes these blissful relationships have a dark side, as Harvard biologist ...

Apr 28, 2009 3.5 / 5 (4) 0

Why Don’t More Animals Change Their Sex

(PhysOrg.com) -- Most animals, like humans, have separate sexes — they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then switch ...

Feb 02, 2009 5 / 5 (3) 3