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Latest Antipredator adaptation Stories

Colorful 'Eyespots' On The Wings Of Butterflies Add Detail To The Story Of Evolution
2014-05-28 03:38:55

Oregon State University A new study of the colorful "eyespots" on the wings of some butterfly species is helping to address fundamental questions about evolution that are conceptually similar to the quandary Aristotle wrestled with about 330 B.C. – "which came first, the chicken or the egg?" After consideration, Aristotle decided that both the egg and the chicken had always existed. That was not the right answer. The new Oregon State University research is providing a little more...

Is It Better To Be Social Or Stinky In Thwarting A Predatory Attack?
2014-02-11 05:59:04

Lawrence LeBlond for redOrbit.com - Your Universe Online Skunks do it best when halting a predator in its tracks, unleashing a noxious stream of urine that can send the most lethal of hunters in the opposite direction. Other animals of the same group tend to rely on strong social bonds to thwart impending attacks. But why do some animals use noxious scents while others use strong social groups to defend against predation? To better answer this question, Theodore Stankowich, of...

2012-10-01 12:09:50

Scientists at the University of Rhode Island's Graduate School of Oceanography have made the first observation of a predator avoidance behavior by a species of phytoplankton, a microscopic marine plant. Susanne Menden-Deuer, associate professor of oceanography, and doctoral student Elizabeth Harvey made the unexpected observation while studying the interactions between phytoplankton and zooplankton. Their discovery will be published in the September 28 issue of the journal PLOS ONE. "It...

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2009-03-26 10:09:38

University of Michigan ecologists and their colleagues have answered a question that has puzzled biologists for more than a century: What is the main factor that determines a lizard's ability to shed its tail when predators attack? The answer, in a word: Venom. Tail-shedding, known to scientists as caudal autotomy, is a common anti-predator defense among lizards. When attacked, many lizards jettison the wriggling appendage and flee. The predator often feasts on the tail while the lucky lizard...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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