Turtles

This week we are looking at turtles, did you know they are cold blooded reptiles, which is why they are often seen basking in the sun.

Some feel they seem ancient and mysterious as well as strangely comforting. This may have something to do with the fact that they have been around for more than 220 million years, what the hell that means they were around during the time of the dinosaurs.

Their slow, steady way of life hides a surprising amount of diversity and evolutionary brilliance.

Their shells are part of the skeleton which means they can’t leave it and it grows with them.

There are three main species, sea turtles, freshwater turtles and tortoises, they often live a long time some giant tortoises can live over 150 years.

Sea Turtles are graceful ocean wanderers that migrate thousands of kilometres. Females return to the exact beach where they hatched to lay eggs, sadly many species of sea turtles are endangered due to fishing nets, pollution, and habitat loss. Examples are the Green Turtle, Logerhead, Hawksbill.

Then there are Freshwater Turtles, which are found in rivers, lakes and wetlands, with some of the most unique species being found in Australia. Examples are the Murry River Turtle, Mary River Turtle which has punk-rock algae hair.

Lastly, we have tortoises which are land dwelling, slow moving, long living with thick domed shells. They are herbivores a famous one is Jonathan who holds the recorded for being the longest living.

All turtles lay eggs on land, even sea turtles with hatchlings relying on moonlight to guide them to the ocean, sex is determined by temperature warmer nest produce more females.

They may not be fast, but they’re far from simple, as Sea turtles navigate using Earth’s magnetic field, Freshwater turtles recognise individual humans and some species communicate through low‑frequency sounds.

They play essential roles in ecosystems with sea turtles keep seagrass meadows healthy, freshwater turtles clean waterways by scavenging and tortoises shape landscapes by grazing and digging.