Facts About Dolphins

The ocean is a pretty dangerous space, so the human tendency to destroy ecosystems doesn’t exactly bode well for dolphins. In fact, these animals are becoming increasingly endangered due to human interactions ranging from noise pollution, to oil drilling and boat collisions. It’s important to understand more and more about these animals if we want to protect them effectively, so here are some things you should know.

  1. Most dolphins live around 20 years, although it’s not uncommon for some to live into their 40s and 50s.
  2. There are over 30 known dolphin species, including the killer whale.
  3. Dolphins are considered to be mammals. While they don’t have any hair, they breathe air, have live young and are warm blooded.
  4. Dolphins can live in all types of water, from tropical saltwater to freshwater.
  5. Dolphins live in groups, so it’s not uncommon to see several of them swimming together at a time. They are also very playful, so they tend to interact with humans and ships that they see above the surface.
  6. Dolphins also hunt in groups. Several dolphins might work together to catch prey. As a whole, Dolphins are omnivores
  7. There are a variety of diseases and parasites that can shorten the life of a dolphin, including heart diseases, as well as viral, bacterial and fungal infections.
  8. Because Dolphins breathe air, they have to come above water occasionally. They breathe through a blowhole at the top of their heads instead of their mouths, allowing them to hunt prey without getting water into their lungs.
  9. Dolphins use echolocation in order to navigate through water. They emit high frequency clicks and listen for the echoes that bounce off objects in their paths, allowing them to determine distance and trajectory.