2. Sharks have a keen sense of smell. Sharks can smell blood from miles away. This helps them to find food and avoid predators.
3. Sharks have excellent eyesight. Sharks can see in very low light conditions. This helps them to hunt for prey and avoid predators.
4. Sharks have a strong sense of hearing. Sharks can hear sounds from up to 1,000 feet away. This helps them to find food and avoid predators.
5. Sharks are ectothermic. This means that they can survive in water with a wide range of temperatures. Ectothermic animals can also tolerate changes in water temperature and pressure.
6. Sharks are highly evolved. Sharks have been around for over 400 million years. They have evolved a number of adaptations that help them to survive in the harsh ocean environment. These adaptations include their tough skin, keen sense of smell, excellent eyesight, strong sense of hearing, and ectothermic nature.
Here are some additional factors that contribute to the survival of sharks:
* Sharks have a high reproductive rate. Sharks can produce hundreds or even thousands of offspring at a time. This helps to ensure that the species survives.
* Sharks are long-lived. Some sharks can live for up to 100 years. This gives them plenty of time to reproduce and pass on their genes.
* Sharks are territorial. Sharks will defend their territory from other sharks and predators. This helps to ensure that they have access to food and resources.
These are just a few of the factors that contribute to the survival of sharks. They are highly evolved creatures that have adapted to a life in the ocean. As a result, they have been able to thrive for millions of years.