1. The ten deep-sea monsters are lion's mane jellyfish, blue whale, king squid, bowhead whale, whale shark, sperm whale, king physalis squid, manta ray, sunfish, and North Pacific Ocean Giant octopus.

2. The ten deep-sea behemoths are blue whales, fin whales, bowhead whales, whale sharks, king squid, sperm whales, humpback whales, king physalis squid, killer whales, and basking sharks.

3. Mosasaurus, Dunkleosteus, Liopleurodon, Megalodon, Kronosaurus, Basilosaurus, Terrestrial Shark, Melville's Whale, Tritonosaurus, Chubutkeke Shark. Mosasaur.

4. Led by Dr. Demizon and including paleontologists from Utrecht University and the Natural History Museums of Rotterdam, Pisa, Lima and Brussels. Melville's whale is a behemoth of the deep sea. It can be regarded as a dominant existence. I believe that in its era, it was invincible and had no rivals.