Overporduction occurs and a lot a baby sea turtles are born.
The sea turtles start their hard journey to the sea however an eagle spots them. It just a race for survival.
One turtle gets knocked over on to it's back and is targeted by the eagle and get eaten. The fastest turtle with strong flippers and energy makes it to the sea first and is safe.
Another turtle makes it in the sea however the turtle closest to the sea is targeted by the eagle and gets eaten.
The turtle makes haste and uses this chance to make it onto the sea unscathed however, the slowest and weakest turtle is too slow and could not make it resulting in its death.
The three turtles that made it to the sea contain strong ability such as great energy and strong flippers because they were capable of making it to the sea. These traits will be passed on to their offspring so more will survive.