Ancient sturgeon can grow up to 24 feet long and weigh nearly 3,500 pounds, comparable to small whales, with a lifespan of 50 to 60 years.
Hippos, weighing approximately 3,200 kilograms and measuring 3.5 meters in length, are among the most dangerous animals on Earth, capable of running at speeds of 20 miles per hour.
The heaviest marine crustacean, a lobster caught off Nova Scotia, weighed 44 pounds and six ounces, estimated to be around 100 years old.
The blue whale, the largest creature on Earth, can reach lengths of up to 108 feet and weigh as much as 44,000 pounds, with conservation efforts helping stabilize its population.
The giant Pacific octopus, measuring 30 feet in length and weighing around 600 pounds, is known for its intelligence and ability to camouflage.
A colossal squid, once thought to be a myth, can reach lengths of up to 13 meters and weigh over 1,500 pounds, with its lifestyle remaining largely mysterious.