Marine Iguana

Hello! I am a Marine Iguana, and I am the only lizard of my kind in the whole world. My home is on the rocky, volcanic shores of the Galápagos Islands. My life began when I hatched from an egg that my mother had buried deep in the warm sand, safe from harm. If you saw me, you might think I look like a small, scaly dragon with my spiky crest and dark skin. I'm not a dragon, of course, but I do love the sun! I spend my days basking on the warm black rocks with hundreds of my friends. We look like a giant, living blanket spread out along the coast, soaking up the sunshine and enjoying the ocean breeze. It's a peaceful life, full of sun and friends.

My most amazing secret is something no other lizard on Earth can do: I swim in the ocean to find my food. It's my special talent! I dive right into the cool Pacific waters, and my body is perfectly built for it. I use my long, flattened tail to glide through the water, pushing myself forward like a fish. When I find a good spot to eat, I use my incredibly strong claws to cling tightly to the slippery underwater rocks so the waves don't wash me away. My dark skin isn't just for looks; it helps me soak up the sun's heat and warm my body after a chilly swim. Long ago, in 1835, a famous visitor named Charles Darwin came to my island home. He was completely amazed to see a lizard like me swimming so gracefully in the sea.

My favorite food in the whole world is the tasty marine algae that grows on the underwater rocks. But eating in the ocean comes with a big challenge: I swallow a lot of salty seawater along with my meal. Too much salt can be dangerous, but I have a secret superpower to deal with it. I have special glands in my nose that collect all the extra salt from my body. When they're full, I let out a big sneeze! A fine mist of salty water shoots out of my nostrils, which can look pretty funny. Sometimes it even lands on my friends' heads, leaving a white crust when it dries. This salty sneeze is my special way of staying healthy and balanced. After a long swim and a good meal, there's nothing better than huddling together with my friends on the rocks to share our warmth and get cozy again.

Life on the islands isn't always easy, and my family and I face some serious challenges. Sometimes, a weather pattern called El Niño makes the ocean water much warmer than usual. A major El Niño event happened from 1982 to 1983, and it was a very difficult time for us. The warm water caused most of the algae—my only food—to disappear. But we have an incredible adaptation to help us survive. When there isn't enough food, our bodies can actually shrink. Even our bones get smaller! This allows us to live on less energy until the cooler water returns and the algae grows back. It's a remarkable survival skill. Today, we also face new challenges from pollution in the ocean and from new predators that humans have brought to our islands.

My story is still being written every single day here in the Galápagos. I play an important role in my ecosystem as an 'ocean gardener.' By eating algae, I help keep it from growing too much, which keeps the underwater environment balanced. Even my poop is helpful, as it provides nutrients for the plants and tiny creatures along the rocky coast. I am a living example of evolution, a special treasure of these islands that scientists and visitors travel from all over the world to see. As I swim, sneeze, and sunbathe on my volcanic home, my life is a reminder of how amazing and adaptable nature can be.