An adult male gray whale can grow to 14.6 m in length that s longer than a city bus.
Females are slightly bigger.
Both males and females weigh up to 30,000 kg. These enormous animals eat large quantities of tiny animals. Scientists believe an adult gray whale consumes about 1,200 kg of food per day. The main component of their diet is small, shrimp-like animals called amphipods that live on muddy ocean floors. Amphipods are minute compared to gray whales.