Sea's Secrets
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Sea's Secrets
Many people use the terms "ocean" and "sea" interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography (the study of the Earth's surface). Seas are smaller than oceans and are usually located where the land and ocean meet.
{Sea animals}
Dolphins: are marine mammals that are closely related to whales and porpoises. Dolphins are part of the family of toothed whales that includes orcas and pilot whales. They are mammals and breathe through a blowhole on the top of their head. ... Dolphins are carnivores, mostly eating fish and squid.
Sea turtles: are large, air-breathing reptiles that inhabit tropical and subtropical seas throughout the world. Sea turtles around the world have been studied to help collect information about their growth rates, reproductive cycles and migration routes.
Sharks: physical Characteristics. Firstly, there are approximately 460 known shark species living in our oceans today. They belong to a family of fish whose skeletons are made up of cartilage rather than bone. Cartilage is a tissue that is a lot more flexible and lighter than bone.
Fish: A fish is an animal which lives and breathes in water. All fish are vertebrates (have a backbone) and most breathe through gills and have fins and scales. Fish make up about half of all known vertebrate species.
Starfish: are echinoderms (spiny skinned sea urchins). They are also known as sea stars and are not really fish despite the name been given to them. Starfish cannot swim, and they do not use gills to breathe. ... Starfish are found in the deep blue sea of the ocean and shallow water as well.
{Sea plants}
Corals: are marine invertebrates within the class Anthozoa of the phylum Cnidaria. ... Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of myriad genetically identical polyps.
Giant kelp: it lives in cold, clear waters where it forms large, dense kelp forests that provide habitat for thousands of other marine species. Though it resembles a tall grass, giant kelp is not a plant. ... Most protists are single-celled organisms, but the giant kelp is a complex species and is the largest protist in the world.
Seagrasses: are found in shallow salty and brackish waters in many parts of the world, from the tropics to the Arctic Circle. Seagrasses are so-named because most species have long green, grass-like leaves. ... Seagrasses have roots, stems and leaves, and produce flowers and seeds.
Sea grapes: A tropical tree found in the tropics, sea grape plant (Coccoloba uvifera) is often used in ocean-side landscaping. Growing sea grapes can be found in sandy soil right on the beach and it produces clusters of fruit that resemble grapes.
{Unusual sea creatures}
Mermaids: In folklore, a mermaid is an aquatic creature with the head and upper body of a female human and the tail of a fish. Mermaids appear in the folklore of many cultures worldwide, including the Near East, Europe, Asia, and Africa.
Seahorses: Seahorses are fish. They live in water, breath through gills and have a swim bladder. However they do not have caudal fins and have a long snake-like tail.
Octopus: like other cephalopods, the octopus is bilaterally symmetric with two eyes and a beak, with its mouth at the center point of the eight limbs (traditionally called "arms", sometimes mistakenly called "tentacles"). The soft body can rapidly alter its shape, enabling octopuses to squeeze through small gaps.
Jellyfish: are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria.