How are scientists able to say that a random species is extinct? Did they have to look everywhere?
In: 14
Scientists and hobbyists in many places around the world track and report populations of animals. For example, you can track the population of local birds in the US through apps on your phone.
Eventually people stop reporting sightings of a specific plant or animal and they are considered extinct after enough time has gone by. The system isn’t perfect and some animals do reappear, but for the most part once an animal is extinct it is really gone
Latest Answers