whales
n. countablen. very large animals that live in the ocean and breathe air through a hole on top of their heads. Even though they look like big fish, they are actually mammals.
n. large aquatic mammals belonging to the order Cetacea, characterised by a streamlined body and a blowhole for breathing. They are distinguished from fish by being warm-blooded and nursing their young with milk.
We saw several whales swimming near the boat.
During the winter months, many species of whales migrate to warmer waters to give birth to their calves.
The conservation of blue whales remains a priority for marine biologists, as these massive creatures play a vital role in maintaining the health of the ocean's ecosystem through nutrient cycling.
The plural form is usually 'whales', though 'whale' can occasionally be used as a collective plural in a hunting or commercial context.