screaming birds

Winter in the Arctic, temperatures drop very low, accompanied by very scarce foods. When the ambient temperature drops, it is difficult to find food, polar bears start to

Scientists have identified the cause of the death of a series of juveniles (blackbird) at a high school in the UK last August.

Troops on guarding enemy territory keep the radio in regular contact with colleagues to make sure everything is normal and safe to operate. New research by Dr. Andy Radford of the