1 : Marine iguanas, however, possess just this ability! In times of food scarcity, their bodies actually get smaller so that they require less sustenance.
2 : Marine iguanas actually expel salt through their noses. Because they spend time swimming in the salty sea, they ingest a large quantity of salt.
3 : They prefer to feed off plant matter among the rocks and pools, typically algae and seaweed.
4 : Scientists theorize that the marine iguana was first brought to the Galápagos Islands as far back as 5.7 million years.
5 : They spend a lot of time lying on the black rocks in the sun, absorbing as much heat as they can before diving into the cold water.
6 : They can sustain this as long as they need to swim. It helps them stay underwater for extended periods of time.
7 : Marine iguanas are nonvocal, meaning they rely on visual and olfactory communication. However, mockingbirds use various sounds to communicate danger with each other.
8 : they can hold their breath for 30-40 minutes at a time, and some think they can do it for longer than that.
9 : This peculiar behavior is not meant to be friendly assent; on the contrary, these lizards bob their heads as a warning to intruders or potential male rivals.
10 : Marine iguana males have a serious responsibility during mating season: to find a mate! This means they need to attract females in heat.