The dying out or extermination of a species. This can happen through natural processes (e.g., a species not being able to survive competition with others), natural disasters (e.g., endemic plants being wiped out by a volcanic eruption), as well as through human activities (e.g., destroying the habitat of river dolphins, overexploitation of the Steller’s sea cow).
Breeding season
Time in the year when females give birth to their calves or pups.























































































































