Statistics for Largest Animal by Taxonomic Rank

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Group	Maximum Weight	Largest Animal	% Correct
Rodents (Rodenta)	91 kg	Capybara	89%
Cetaceans (Cetacea)	173 tonnes	Blue Whale	86%
Monitor Lizards (Varanus)	166 kg	Komodo Dragon	79%
Birds (Aves)	145 kg	Ostrich	79%
Crocodilians (Crocodilia)	1,075 kg	Saltwater Crocodile	77%
Carpet Sharks (Orectolobiformes)	15,000 kg	Whale Shark	53%
Cephalopods (Cephalopoda)	495 kg (or more)	Colossal Squid	48%
Crustaceans (Crustacea)	20 kg	American Lobster	40%
Bivalves (Bivalvia)	250/340 kg	Giant Clam	38%
Turtles (Testudines)	650 kg	Leatherback Sea Turtle	38%
True Jellyfish (Scyphozoa)	150 kg	Lion's Mane Jellyfish	29%
Arachnids (Arachnida)	175 g	Goliath Birdeater	27%
Frogs (Anura)	3.25 kg	Goliath Frog	25%
Bovids (Bovidae)	1,500 kg	Gaur	24%
Grasshoppers, Crickets etc. (Orthoptera)	70 g	Little Barrier Giant Wētā	12%