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Latest Jessica Yorzinski Stories

Distinctive Male Peacock Love Call Allures Females From Afar
2012-12-21 12:05:04

[Watch Video: Male Peacock Demonstrates 'Hoot-Dash Display'] redOrbit Staff & Wire Reports - Your Universe Online The distinctive sound made by male peacocks just before mating attracts female voyeurs for reasons currently unknown, a Duke University researcher has discovered. The India peafowl's unique pre-copulation ritual, which is also referred to as the "hoot-dash display," involves the male members of the Phasianinae family dashing toward a female companion and squawking...

2009-12-04 15:04:24

Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a UC Davis study. Many animals respond vocally when they detect predators, but it's not clear to whom they are signaling, said Jessica Yorzinski, a graduate student in animal behavior at UC Davis who conducted the study with Gail Patricelli, professor of evolution and ecology. They might be warning others...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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