#9 Japanese Spider Crabs Are the Largest Arthropod
The Japanese spider crab, with its long spindly legs, is an arthropod – an invertebrate animal that has jointed appendages (legs) and a segmented body. Its leg span is the largest of any arthropod, growing to a length of up to 3.8 m (12 ft). If left to continue growing, it can weigh as much as 19 kg (42 lbs). The Japanese spider crab is a carnivore, living mainly on smaller shellfish. Amazingly it can live as long as a century. While these crabs are sometimes found as deep as 600 m (2,000 ft) below the sea’s surface, during the breeding season they come closer to the surface and are often found in relatively shallow water just 50 m (160 ft) deep.
#8 Capybara Are the Largest Rodents
Native to temperate and tropical areas in South America east of the Andes Mountains, the capybara (Hydrochoerus hydrochaeris) is the world’s largest living rodent. Unlike most rats and mice, the amazing capybara is known to grow to a length of 1.5 m (4.9 ft) and a height of 900 mm (3 ft) when measured at the shoulder. Its weight has been recorded as being as much as 105.4 kg (232 lbs). Generally these unusual rodents live in groups of 10 to 20, but have also been found in much larger groups.