For anyone curious or interested to learn more about dolphins, here are 10 tidbits of info to get started with.
- 1. The name dolphin comes from the Greek word delphis, similar to delphus meaning “womb”, or a fish with a womb.
- 2. It’s believed that the ancestors of dolphins re-entered the water from the land about 55 million years ago.
- 3. There are about 40 species of dolphins, with the smallest being the Maui dolphin at 1.2 m or 4 ft and about 40 kg or 90 lbs. The largest is the orca or killer whale, at 9.5 m or 30 ft long and about 10 tonnes or about 22,000 lbs.
- 4. A group of dolphins are called a pod, and can range from a dozen or merging with other pods to form a superpod, with groups of around a 1,000 dolphins.
- 5. In Greek mythology, a dolphin rescued the poet Arion from drowning, they were known to be messengers of Poseidon, Dionysus had turned a group of pirates that captured him into dolphins, making them spend the rest of their lives helping others instead. Hindu mythology has Ganga from the Ganges river with a dolphin, and the Boto dolphins in the Amazon River are believed to be shapeshifters.
- 6. More modern stories of dolphins include the 1964 television series Flipper, able to decrypt data in the sci-fi Johnny Mnemonic, as well as with Orcas or killer whales in the movie Orca and Free Willy, and of course the class So Long, and Thanks for All the Fish introduction of Douglas Adams’ The Hitchhiker’s Guide to the Galaxy.
- 7. Dolphins have excellent hearing and can hear frequencies 10 times or more above what humans can hear.
- 8. When dolphins sleep, only one hemisphere of the brain sleeps at a time, staying partially awake for potential threats or disturbances.
- 9. Known as very social creatures, they’ve been reported helping other injured or ill dolphins or whales as well as protecting humans from sharks. Dolphins have few natural enemies or threats outside of humans.
- 10. Dolphins feed mostly on fish and squid, with methods including herding and corralling. Herding is circling a school of fish into a bait ball, corralling is chasing fish into shallow water for easy pickings. Occasionally dolphins will cooperate with onshore fisherman, chasing fish into the nets and catching the ones trying to escape the nets. While this practice goes back to Roman times, it’s currently done in Laguna, Santa Catarina, Brazil.
Organize environmental topics on your own network
If you’re involved with an organization or group that’s interested in different aspects of the environment, such as dolphins, here are a few benefits or ways you can use an Odysen network to help organize your activities:
- Privacy: Have a network just for your group, having a central place for a variety of content.
- Easy to organize: Simply add a new folder for different topics or activities. Within each folder are applications to add content to. This could be sharing office files, photos, scheduling events, organizing a project, sharing useful websites, blogs, videos, and more.
- Stay informed: Let others know of something new with an email notification, stay informed of new content or comments by adding a newsletter to your network.
Learn more about having your own network for an organization, including using the applications, benefits, and other relevant blog articles.
Matt | Posted on | December 1, 2013 | Comments Off