Tag: "tadpole" at biology news
Picky female frogs drive evolution of new species in less than 8,000 years
...es and northern males failed to develop beyond the tadpole
stage. Though crosses involving northern females and southern males successfully produced frogs, the offspring developed more slowly than the offspring of pairs of northern frogs. Field studies confirmed the laboratory results. Researchers could fin...
Time of day tempers tadpoles' response to predators
...d being eaten. But there's a trade-off. The more a tadpole
eats, the faster it grows big enough to transform into a frog; yet finding food requires being active, which ups the odds of becoming someone else's dinner. Scientists have known that prey adjust their activity levels in response to predation risk...
Leptin found to control appetite and limb development in frogs
... role in the complex signaling that turns a finned tadpole
into a four-legged frog, according to Robert Denve...se of leptin at various stages of development from tadpole
to near adult and watched what happened. As in mice, the hormone is apparently a powerful appetite s...