The brown anole, a prolific lizard native to Cuba and the Bahamas and now commonly found in many tropical and subtropical regions, is providing new clues to how genetics and hormones work together to shape the development ...
Plants & Animals
Mar 1, 2017
0
17
In the upside-down world of the pipefish, sexual selection appears to work in reverse, with flashy females battling for males who bear the pregnancy and carry their young to term in their brood pouch. But new research shows ...
Plants & Animals
Jan 4, 2017
0
26
Why do some animals have extravagant, showy ornaments—think elk and deer antlers, peacock feathers and horns on dung beetles—that can be a liability to survival? Charles Darwin couldn't figure it out, but now a Northwestern ...
Evolution
Nov 30, 2016
3
1039
Showy ornaments used by the male of the species in competition for mates, such as the long tail of a peacock or shaggy mane of a lion, could indicate a species' risk of decline in a changing climate, according to a new study ...
Evolution
Nov 14, 2016
0
13
Next time you're getting ready for a hot date and pause to flash a toothy grin at yourself in the mirror, thank your ancestors.
Archaeology
Nov 7, 2016
0
81
300 million-year-old pre-mammalian reptiles knew that it was their beautiful smiles that made them sexy, so they evolved mouths full of teeth to attract mates.
Archaeology
Sep 22, 2016
1
223
It may be hard to imagine competing over who gets to kiss a frog, but when it comes to mating, a new study concludes that some frogs have moved out of the pond onto land to make it easier for the male in the pair to give ...
Evolution
Jul 26, 2016
0
6
When you're a firefly, finding "the one" can change the world. Literally. A new study by UCSB evolutionary biologists Todd Oakley and Emily Ellis demonstrates that for fireflies, octopuses and other animals that choose mates ...
Evolution
Jun 23, 2016
1
8
In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large numbers of tiny sperm can increase the probability of successful fertilization, especially ...
Plants & Animals
May 25, 2016
2
19
What are the cause and innate power for the biological evolution? This is a controversial problem from ancient times to now. The interpretation for the evolutionary process is at an ambiguous phase although the academia admitting ...
Archaeology
Apr 20, 2016
0
5
