5 Interesting Facts About Marine Iguanas

Marine Iguana

This is a group of marine iguanas giving each other hugs

Today I want to write about an animal that has a very ancient look, the marine iguana.

Here are five interesting facts about them:

  1. These large lizards grow up to 75 cm long, with males larger than females.
  2. Marine iguanas are the only lizards in the world that spend a lot of their time in the ocean, with young ones eating algae from rocks at low tide and larger adults swimming below the water to graze on seaweed.
  3. Their dark skin helps them to absorb heat from the sun and they start the day by sitting in the sun to warm themselves up so that they can cope with swimming in very cold water.  They also swallow a lot of salt when they eat underwater which is very bad for their health, so they sneeze it out of their nostrils.
  4. At breeding time, the males defend their territories and then the females lay 1-6 eggs in sand or burrows.
  5. Marine iguanas are found on the shores of the Galapagos Islands.  They are considered vulnerable to extinction due to introduced cats, dogs and pigs which often eat their eggs and young iguanas.  They are also impacted by changes in water temperature and pollution.

I hope that you found these facts interesting and learned something new.

Are there any other interesting facts that you would like to share about marine iguanas?

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