Sharks also have a tremendous number of sharp teeth, which make them fierce predators.
Sharks stiffen and arch their bodies and open their mouths to exhibit a threat to other sharks and display swimming techniques such as turning away to dominate their own space
Sharks accumulate fat stores during coastal feeding phases to fuel long-distance migrations
Shark bodies have a torpedo shape to reduce drag in the water.
A shark has fins and a streamlined body that help it swim through water.
Its long neck and high-set eyes, which register a much wider range than do the eyes of a human being, enable the horse to discern a possible threat even while eating low grasses.
In addition to its crucial role in the immune system, the spleen stores extra red blood cells.
They changed from having three toes, known as tridactyl, to having a single toe, called monodactyl.
They have a relatively small stomach, but long intestines to provide them with a steady stream of nutrients throughout the day.
They can sleep while standing, an adaptation from life as a prey animal in the wild.
They keep their skin clean and protect themselves from sunburn by taking regular dust and mud baths.
Elephants also have long trunks that are used to grab food, suck up water, or throw dirt on their backs.
They also have tusks made of ivory that can help them eat and protect themselves.
The folds and wrinkles in their skin can retain up to 10 times more water than flat skin does, which helps to cool them down.
Their big ears and wrinkly skin help them stay cool.