Why don't you ever see baby pigeons? For the same reason you don't see many chicks: they can't fly. It can take months for their partially developed wings and flight muscles to become airworthy, and by then the youngsters ...
Plants & Animals
Jun 23, 2011
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0
(Phys.org) —Flying has always fascinated humans, probably because we are so relentlessly Earthbound. One of the things that interests researchers who study flight is the question of how animals that do it can generate the ...
Plants & Animals
Jun 13, 2013
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0
During the final stage of cell division, a short-lived contractile ring constricts the cellular membrane and eventually separates the dividing cell in two. Although this "molecular muscle's" composition, mainly actin and ...
Cell & Microbiology
Jun 11, 2012
1
0
With their translucent bells, moon jellyfish (Aurelia aurita) move around the oceans in a very efficient way. Scientists at the University of Bonn have now used a mathematical model to investigate how these cnidarians manage ...
Plants & Animals
Jan 23, 2020
0
7
(AP) -- A 33-year-old British adventurer preparing for a historic solo crossing of Antarctica was waiting at a base camp for the weather to improve on Sunday in order to begin her long journey on skis.
Earth Sciences
Nov 21, 2011
5
0
In a new study published in the journal Proceedings of the Royal Society B, researchers have studied the efficiency of migratory bats—a species that weighs about eight grams and is found in almost all of Europe. Efficiency, ...
Plants & Animals
May 9, 2023
0
188
The serve is arguably the most important component of the modern tennis game – and the faster, the better.
General Physics
Jan 14, 2019
1
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