Evolution of sea turtles ( Chelonioidea )
Where did sea turtles evolve from?
Sea turtles originated from South Africa 260 million years ago at the shore of the ancient Karoo sea. Most of these turtles would continue to develop the armour plating ( A hard metal covering ) of their Proganochelys ancestors, streamlining it.
Where do Sea Turtles live?
Sea turtles come from all around the world. Males never leave the ocean, while the females leave the ocean so they lay their eggs in the sand. They usually come from the cold waters off California. Then they swim out the warm beaches of the Coral triangle. They migrate long distances to feed, often crossing entire oceans.
Do sea turtles live long lives?
It’s difficult to know exactly how sea turtles can live. Their life span is often longer than most research projects. Most marine turtles take decades to grow between 20 and 30 years and remain active for another 100 years. They also have similar life spans as humans. The reason they live is because they grow very slow throughout their life.
Why are sea turtles endangered?
All seven sea turtle species are classified as endangered sea animals and that is mostly due to human activity. It gets accidentally caught in shrimp trawl nets, on longline hooks and in fishing gill-nets. Sea turtles need to reach the surface to breath and many drown once they get caught. They are killed for their eggs,meat, skin and shell.
Fun Facts :
- They’re the oceans lawnmower
- They hold their breath for 5 hours underwater.
- Temperature dictates the sex of baby turtles.
- They live to about 100 years.
- Unlike other turtles , sea turtles can’t pull their heads and limbs inside their shells.
Timeline of Sea turtles.
Graphs of a Sea Turtles
No comments:
Post a Comment