Although they typically don't live together in groups, they may temporarily cluster together to form a defensive circle when threatened by a potential predator. In those circumstances, the whales form a circle with flailing tails pointed outwards. They may also move into shallow waters to attempt to overt the predator but sharks and killer whales (orcas) are able to continue to stalk in these depths. The right whale was hunted by man easily because it comes close to shore, is slow-moving and floats when killed (Evans 1987).
These whales are protected from most predators by their formidable size, calves may be targeted by killer whales (orcas) and sharks.
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