Question

Why are Northeast Pacific populations of transient and resident killer whales thought to represent different ecotypes rather than different species?

Answer 1

There are three ecotypes present for whales:

• Found in Canadian pacific, as habitat is different they also have different pray preferences.
• They are not only socially but genetically they are also different, and they are present in different water.
• The ecotypes are also divided into two distinct parts, northern and southern populations.
• They also do not interbreed.

The above are general things related to whales. They are not different species because they have occupied different habitats which ked to the evolutions in them according to that new habitat. The environment plays an important role in evolution or any change in an organism.

According to their prey preference, behaviors and social groups, they have divided their niche and also their habitat is different.

They are not considered as a species because of the above characters. As they show the grouping and some other features the same which indicates characters of a killer whale.