Sharks like the great white can smell blood up to 3 miles away. According to National Geographic, sharks can smell one drop of blood in 25 gallons of water, 3 miles away.
Sharks like the great white shark are carnivores, meaning their diet consists of meat. Great whites grow to be about 15 feet long and can weigh up to 5,000 pounds. They have a gray body meant to blend in with the ocean bottom and are called "great white" sharks because of their white underbellies.
When one animal attacks another and blood is spilled, that blood can attract sharks for miles around. The shark's keen senses allow it to quickly hone in on the source of the blood and sharks often take a test bite to find out if a meat is suitable for eating. This test bite is what is likely what is happening when a shark bites a human.Learn More
Sharks rest in an approximation of what is termed sleep in land animals, though they do it with their eyes open. However, some sharks are nocturnal, which means they are active at night and rest during the day, and others rest when they are well fed and safe.Full Answer >
The great white shark is a fish. Great white shakes are the biggest fish of prey in the world. These large fish are carnivorous, and some of their preferred food sources of food include sea turtles, sea lions and seals.Full Answer >
A stingray is not a shark, but the two are closely related. They belong to the same group of fishes called elasmobranchs, members of the group Elasmobranchii, a subclass of Chondrichthyes, which also includes skates.Full Answer >
Because they do not have separate openings for reproduction and excretion, the posterior gut opening in the excretory systems of sharks is called a cloaca rather than an anus. In the digestive systems of sharks, food passes through a single short intestine and is afterwards expelled through the cloaca.Full Answer >