Researchers used the environmental circumstances and fecal samples collected from the six years prior to the severe El Ni o drought in Costa Rica to study the relationship between the endocrinologic ...
Woolly monkeys were once considered four species: the gray, Columbian, silvery, and Peruvian yellow-tailed woolly monkeys. More recent genetic studies suggest there are only two species—the ...
Keepers at a zoo in Essex have counted every tiger, monkey and seal as part of an annual stock take. Colchester Zoo updates its records at the end of each year to keep track of births, deaths and ...