Marine Animals
Read wildlife facts about ocean animals such as dolphins, sharks, whales, octopuses, and sea turtles.
Marine animals live in a world shaped by currents, salinity, depth, waves, pressure, and temperature. Some species spend their whole lives in the open ocean, while others depend on coral reefs, coastal shallows, seagrass meadows, estuaries, or the sea floor. Ocean wildlife shows how different body plans can solve similar survival challenges, from streamlined swimmers to flexible predators and filter-feeding giants.
Chapter Contents
5 entries in this chapter.
- DolphinDolphins are intelligent marine mammals known for echolocation, social groups, fast swimming, and playful surface behavior.27
- SharkSharks are ancient cartilaginous fish with keen senses, varied body shapes, and major roles in marine food webs.28
- Blue WhaleBlue whales are the largest animals known to have lived, feeding mainly on tiny krill in the open ocean.29
- OctopusOctopuses are intelligent marine invertebrates famous for flexible bodies, camouflage, problem-solving, and dexterous arms.30
- Sea TurtleSea turtles are ancient marine reptiles that migrate widely, breathe air, and return to beaches to nest.31
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