Great white shark: It is the largest predatory fish in the world. It is the main natural enemy of many marine mammals, and it also preys on seabirds and other fish and other marine life that can be killed. The average length of great white shark is 4.5 meters, and the maximum length is 6 meters, and the average weight is 680 kilograms, and the maximum length is 1900 kilograms. Great white sharks have strong bodies, sharp teeth, keen sense of smell and hearing, and the ability to swim at high speed and jump out of the water. Great white sharks are opportunists, and they will attack when they see the right prey.

King Squid: It is a kind of squid that lives in the deep sea of Pacific Ocean and Atlantic Ocean. Its natural enemy is sperm whale, which is the longest invertebrate in the world. The total length of female squid is about 12- 13 meters, its body length is about 4 meters, and the length of tentacles is 10 meters or even longer. Males are much smaller than females, but no complete individuals have been found; Whether male or female, its maximum length does not exceed13m. The king squid has two long tentacles and eight short wrists, and there are suckers and barbs on the touching limbs, which can be used to catch prey and chop it up with a beak similar to a bird's mouth. King squid will hunt large deep-sea fish and other cephalopods.

African elephant: It is the largest living terrestrial mammal in the world, mainly distributed in sub-Saharan Africa. There are two subspecies of African elephants: forest elephants and grassland elephants. Forest elephants are small in size, with an average weight of about 2700 kg; Grassland elephants are large, with an average weight of about 6000 kg. African elephants have strong bodies, long and flexible noses, huge and curved teeth (ivory), and thick and rough skin. African elephants mainly feed on plants, and need to consume about 300 kilograms of food and 160 liters of water every day.

Based on the above information, we can draw the following conclusions:

Great white shark? 4.5 meters (maximum 6)? 680 kg (maximum 1900) predatory animals (natural enemies)

King squid12-13m (maximum13)150-275kg? Predatory sperm whale (natural enemy)

African elephant 2.5-4m (grassland elephant) 2,700-6,000kg herbivorous lion and crocodile (natural enemy).

It can be seen that the great white shark is superior to the king squid and African elephant in weight and aggression, and has no obvious natural enemies, so it can be considered as the strongest animal. Although the king squid surpasses the great white shark and African elephant in length, it is not as good as them in weight, and it has powerful natural enemies like sperm whales, so it can be considered as the second strongest animal. Although the African elephant surpasses the king squid in weight, it is not as good as it in length and aggression, and it has natural enemies such as lions and crocodiles, so it can be considered as the weakest animal.