Adult Great Whites are apex predators. Apart from the Orca (Killer Whale), there are no known predators that may attack or kill a Great White. In regions where both the Orca and the Great whites inhabit and compete for food, Orcas may attack and kill these sharks. Since Orca's are much larger than them, they can attack and even kill great whites.
Yes a Greenland shark is coldblooded
greenland ice
The Greenland shark is nicknamed the sleeper, or the sleeping shark.
Greenland shark fishing
Greenland Shark
The Greenland shark (Somniosus microcephalus) is a shark that must live in the sea, and breathes through gills. A reptile is able to breath air using lungs and can live in or out of water.
While the greenland shark may be dangerous in the fact that it is a shark that could easily eat a person whole, it isn't too common to run in to any. Another fun fact about the greenland shark is that it's skin is poisonous! That makes them even more dangerous!
The Greenland shark typically swims at a slow pace, averaging about 1.3 miles per hour (2 kilometers per hour). This leisurely speed is suited to its cold, deep-water habitat where it hunts for prey. Despite its slow swimming, the Greenland shark is known for its long lifespan and can live for several centuries.
No the biggest a Greenland shark grows 5 meters where as a great white can grow 6 meters in length
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The tiger shark has few natural enemies except man. He may be cautious of a white shark, but normally large predators avoid confrontation.