Basking shark

Basking sharks can reach enormous sizes.

An excerpt from the article 16 facts about Basking shark

As an adult, the basking shark usually reaches a body length of 6.70 to 8.80 meters, but can reach 10 meters or more. The largest recorded individual measured 12.27 meters and was caught in a herring net in the Bay of Fundy in Canada in 1851. The weight of this fish exceeded 9 tons.

Basking sharks weigh approximately 5.2 tons.