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Biologists Link Sexual Selection and Placenta Formation(图)
The placenta. Fish The peacock. Mammals Organs Out of nothing guppy
2014/7/18
RIVERSIDE, Calif. — Sexual selection refers to species’ selection for traits that are attractive to the opposite sex. This special type of natural selection enhances opportunities to mate, the tail of...
Plant hormone has dual role in triggering flower formation, Penn study finds
Plant hormone dual role triggering flower formation Penn study finds
2014/6/12
Flowers aren’t just pretty to look at, they are how plants reproduce. In agricultural plants, the timing and regulation of flower formation has economic significance, affecting a crop’s yield.
Competition for ecological niches limits the formation of new species
Competition ecological niches limits formation of new species
2014/5/13
The rate at which new species evolve is limited by competition for ecological niches, report scientists from the University of Chicago in Nature on April 30. The study, which analyzes the evolutionary...
Sleep helps build long-term memories--Picower Institute study strengthens link between sleep, memory formation
sleep long-term memories Picower Institute memory formation
2009/6/29
Experts have long suspected that part of the process of turning fleeting short-term memories into lasting long-term memories occurs during sleep. Now, researchers at the RIKEN-MIT Center for Neural Ci...