Scientists have tried raising endangered whooping cranes in captivity by using sandhill cranes as foster parents. This strategy is no longer used because
A) fostered whooping crane chicks did not develop the necessary cues for migration.
B) the fostered whooping cranes' critical period was variable such that different chicks imprinted on different "mothers."
C) sandhill crane parents rejected their fostered whooping crane chicks soon after incubation.
D) none of the fostered whooping cranes formed a mating pair-bond with another whooping crane.
E) sandhill crane parents did not properly incubate whooping crane eggs.
The ozone hole in September, 2003. Even as scientists verified that the rate of ozone depletion was
Scientists have demonstrated functional hair regeneration from adult stem cells
The grey nurse shark is critically endangered on the Australian east coast.
An albino alligator could survive only in captivity.
Scientists (group photo)
In many industrialized nations, men are having children at older ages, raising the possibility of ...