- Sharks have special electroreceptor organs.
- Scientists age sharks by counting the rings on their vertebrae.
- Each whale shark’s spot pattern is unique as a fingerprint.
- Some species of sharks have a spiracle that allows them to pull water into their respiratory system while at rest. Most sharks have to keep swimming to pump water over their gills.
- Different shark species reproduce in different ways.
Facts found at, https://www.fisheries.noaa.gov/feature-story/12-shark-facts-may-surprise-you
"Shark" by Conal Gallagher is licensed under CC BY 2.0
Dolphin:
- Dolphins grow up to 13 feet (4 m) long and 1,300 pounds (590 kg).
- Dolphins live for 40 to 60 years.
- Dolphins are carnivores. Fish, squid and crustaceans are included in their list of prey.
- A 260-pound dolphin eats about 33 pounds of fish a day.
- Dolphins are part of the family of whales that includes orcas and pilot whales. Killer whales are actually dolphins.
Facts found at, https://blog.padi.com/2013/09/04/10-fascinating-dolphin-facts/
"Dolphins" by rmprafael is licensed under CC BY-NC-ND 2.0
Whales:
- Male humpback whales found in U.S. waters sing complex songs in winter breeding areas in waters near Hawaii, in the Caribbean, and elsewhere that can last up to 20 minutes and be heard miles away.
- The blue whale is the largest animal that ever lived and can grow to 90 or more feet and weigh as much as 24 elephants! That’s more than 330,000 pounds (150,000 kg).
- Some species of whales are among the longest lived mammals. Scientists estimate bowhead whales (a baleen whale found in the Arctic) can live for more than 200 years, and killer whales (a toothed whale found in various habitats worldwide) can live for more than 100 years.
- Killer whales are highly social and often travel in groups that are matrifocal—a family unit focused or centered on the mother.
- Learn more about the Southern Resident killer whale, a NOAA Fisheries Species in the Spotlight.
Facts found at, https://onekindplanet.org/animal/whale-blue/
"Whales" by mightyb is licensed under CC BY-NC 2.0
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.