ScienceDaily: Strange Science News |
- Giant claw helps fiddler crabs stay cool in more ways than one
- Geometry of sex: How body size could lead to new species
- Chickens eject sperm from males they don't fancy
| Giant claw helps fiddler crabs stay cool in more ways than one Posted: 28 Aug 2011 06:07 PM PDT A male fiddler crab's oversized claw not only looks cool to the ladies, but new research suggests it literally helps crabs to stay cool. Researchers placed crabs under a hot light and took their temperatures. They found that the temperatures of crabs missing their large claw rose faster and reached a higher maximum than intact crabs.  |
| Geometry of sex: How body size could lead to new species Posted: 28 Aug 2011 06:06 PM PDT Different species of scincid lizards, commonly known as skinks, rarely interbreed, but it's not for lack of trying. According to new research, different species of skinks in western North America will often try to mate with each other when given the opportunity, but mechanical difficulties caused by differing body sizes can cause these encounters to fail.  |
| Chickens eject sperm from males they don't fancy Posted: 28 Aug 2011 06:05 PM PDT New research finds that even though hens aren't terribly picky about their mates, they are picky about whose sperm makes it to the egg. Female domestic chickens generally mate with multiple males and are known to sometimes eject sperm following mating encounters. It was unclear, however, whether the sperm ejection was a consequence of receiving a large amount of ejaculate, or because hens are actively trying to rid themselves of undesirable sperm.  |
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