They have sensory organs called "taste buds" that allow them to search for food. When they spread their whiskers wide, they are looking for food.

The snake produces secretion to facilitate molting. The eyes appear white because the secretion is white.

The melon organ is made up of fatty tissue, not brain.
It is so called because this fatty tissue resembles the appearance of a melon.
It acts like a lens that converges sound in one direction & radiates it forward.

The orca is said to be the fastest of all cetaceans at 55 km/h.

Penguins do not have teeth in their mouths. They have small soft spines on their upper and lower jaws to keep their prey from escaping.