The entire species of North American right whales currently consists of less than 400 individuals. Through genetic testing, it has been determined that at some point in the past, probably around the time they were first protected in the beginning of the twentieth century, the population had only three reproducing females. All individuals that exist today are thought to be descendants of those females. As a result, why is this species vulnerable?

Question

Quizplus · Accepted Answer

With only three reproducing females in the past, there has been a significant loss in genetic diversity. This makes the species vulnerable to diseases, environmental changes, and decreases their ability to adapt to changing conditions.

The Entire Species of North American Right Whales Currently Consists