Turtles are amazing animals. They can be traced back to the time of dinosaurs, they usually live around 70 years (tortoises reach around 150 or more years), and they're super cute. Sadly, as human development reaches the quietest of beaches, some turtle hatchlings are having trouble finding the ocean because of the confusing lights. But it's not all bad news! As well as being the problem (sorry turtles), we can also be the solution. Keep on reading to learn how you can help your little flippered friends live to be wise old creatures.
Turtles spend most of their lives in water, migrating for hundreds and even thousands of kilometers in search of food, mating partners, and eventually, to beaches to lay eggs. This is one of the only times that adult turtles will leave the water. Amazingly, every female turtle will return to the beach where she was born to lay her eggs, even if that means travelling hundreds of kilometers. Some people say this is done by using the earth's magnetic field, but no-one knows for sure.
Once a female turtle has found the right beach, she will emerge from the water at night and make her way up the sand to find somewhere dark and quiet to lay her eggs. Once she has laid them all (50 to 200 eggs, depending on the species of turtle), she returns to the sea. The eggs take around 60 days to incubate, and when the turtle hatchlings all emerge together, it is up to them to make it to the safety of the water. Here's where the problem arises.
Any human civilization close to beaches have the potential to be harmful to turtle hatchlings. This is because when turtles are "phototactic," meaning that they are attracted to light. When turtles hatch from their eggs and emerge from their nests, they instinctually follow the brightest source of light - which, in nature, is the moon shining on the ocean. They avoid shadows, for this is where predators can hide.
If there are non-natural sources of light near beaches, including light from buildings, highways, and street lights, turtles will be drawn towards them, and possibly never reach the safe waters of the ocean. Many organisations have recruited volunteers to help steer the turtles in the right direction, as well as keeping them safe from other dangers like birds, crabs and dehydration.
However, these good intentions can sometimes have unintended results. People who get too close to the turtles, or take flash photos of them, can startle the hatchlings and confuse them, making them go in the wrong direction. Shining flashlights can also have the same effect.
There are a few things that you can do to help turtles get to the ocean safely.
Let's do our bit to keep beautiful little creatures like this happy!
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