Named after the Maori word for ‘shark’ which Is the fastest swimmer among the sharks - it can reach speeds of over So mph?
Shark remaining in large schools. Sometimes more than 100 scalloped hammerheads congregate around seamounts and islands, e.g., in the Gulf of California. Cross-species social hierarchies exist. For example, oceanic whitetip sharks dominate silky sharks of comparable size during feeding. When approached too closely some sharks perform a threat display. This usually consists of exaggerated swimming movements, and can vary in intensity according to the threat level. In general, sharks swim ("cruise") at an average speed of , but when feeding or attacking, the average shark can reach speeds upwards of . The shortfin mako shark, the fastest shark and one of
Shark the fastest fish, can burst at speeds up to . The great white shark is also capable of speed bursts. These exceptions may be due to the warm-blooded, or homeothermic, nature of these sharks' physiology. Sharks can travel 70 to 80 km in a day. Sharks possess brain-to-body mass ratios that are similar to mammals and birds, and have exhibited apparent curiosity and behavior resembling play in the wild. There is evidence that juvenile lemon sharks can use observational learning in their investigation of novel objects in their environment. All sharks need to keep water flowing over their gills in