- Spinner dolphins, Hawaii
- Spinner Dolphin jumping off the Na Pali coast, Hawaii.
- by @natgeo “Photo by @BrianSkerry A pod of spinner dolphins mother and calves socialize in the shallow waters off Oahu, Hawaii. Spinners are among the most social species of dolphins. Coverage from an upcoming story about dolphin intelligence in @natgeo. Photograph made under NMFS (NOAA) permit via @PhotoRepost_app
- Behavior Most sharks are especially active in the evening and night when they hunt. Some sharks migrate over great distances to feed and breed. This can take them over entire ocean basins. While some shark species are solitary, others display social behavior at various levels. Hammerhead sharks, for instance, school during mating season around seamounts and islands. Some shark species, like the great white shark, attack and surprise their prey, usually seals and sea lions, from below. Species that dwell on the ocean floor have developed the ability to bottom-feed. Others attack schooling fish in a feeding frenzy, while large sharks like the whale and basking sharks filter feed by swimming through the ocean with their mouths open wide, filtering large quantities of plankton and krill.