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Here are some theories:
Food Shortages
During the ice age, Whales which were once prey to Megalodon went to the colder places where Megalodons couldn't follow because it was too cold. The whales had blubber which kept them warm.
Evolution
By the end of the Pliocene, the whales were getting quicker due to years of evolution and it became harder for the megalodons to hunt them.
Orcas
Killer whales started hunting in the same areas. When they were done eating, there wasn't much left for the Megalodon. The Orcas Also killed young megalodons.
Great Whites
Adults Great White Sharks which coexisted megalodon, preyed on Meg pups, or outcompeted Meg juveniles. They were more expereinced even though the pups were about the same size
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Do snakes kill sharks?
no they do not eat sharks because a shark is to big for them to eat but they can kill sharks
Do sharks kill other sharks?
No they do not.
Do sharks kill more people annually than plane crashes?
No, sharks kill more.
Do great white sharks kill other sharks?
yes great white sharks eat other sharks
Do jellyfish kill sharks?
No.
Can crabs kill sharks?
no.
What types of sharks can a Giant Octopus kill?
Any type of sharks.
Can dolphis kill sharks?
Dolphins are known to defend themselves against sharks and have been observed to chase them away in the wild. In some cases, dolphins have been known to injure or even kill sharks in self-defense or during competition for food. It is not common for dolphins to actively seek out and kill sharks as their primary source of food.
What predators do sharks have?
Sharks aren't normally prey, but things that will kill a shark are humans and other sharks.
Do humans attack sharks?
No we kill them
How do dolphins kill sharks?
with their noses
Can sharks kill yoda?
YES THEY DO
