colossal squid is the largest squid known it reaches heavier weights than the longer giant squid . a live speciman caught on New Zealand weighed 490 kg and 15 ft in length . it is thought be a slow moving predator primarily feeding on antartic toothfish colossal squid occupys the cold water of antartic upto the southern tip of south america and new zealand . adult specimens are probably the top predators of there environment may only threatened by sperm whales , beaked whales and sleeper sharks in there ecosystem
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