- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
ScienceShot: Dad's Odor Splits a Species
25 January 2011 7:01 pm
Some girls want a guy who looks like dear old dad. Stickleback fish want one who smells like him. Researchers have found that in two species of the fish from British Columbia's Paxton Lake, daughters learn who to choose as a mate based on their father's smell, a form of sexual imprinting. One type of stickleback lives in deep water; the other, in waters close to shore. Females of both types lay their eggs in an algae nest the male builds. He then cares for the eggs and fry, as this deep-water form of stickleback is doing above. In laboratory tests, daughters chose mates that smelled like their fathers, researchers report online today in the Proceedings of the Royal Society, B. That keeps the two species apart sexually, helping to reinforce their ecological separation. It's some of the first evidence, the authors say, that sexual imprinting can drive speciation.
See more ScienceShots.