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An ocean is a large area of water between continents. Oceans are very big and they join smaller seas together. Oceans (or marine biomes) cover 72% of Earth. There are five main oceans: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean and Arctic Ocean.The ocean is a magnificent place for life to flourish. There are literally more than 1,000 ocean animal species, but scientists estimate that the total of known and unknown animal species estimate up to between 0.3 million and 2.2 million.
the blue whale
the blue whale
The blue whale is one of the biggest marine animals, in fact, the blue whale is the biggest animal on Earth, weighing over 100,000 pounds and can reach about 90 feet long!
Blue whale description
Blue whale description
Blue whales have a long body and a generally slender shape. Their mottled blue-gray colour appears light blue under water - hence their name, the blue whale. The mottling pattern is variable and can be used to identify individuals.
etYmology
etYmology
Blue whales are named for their gray coloring, which appears light blue in the water, hence the name ' Blue Whale '. Cold water diatoms adhere to their skin and sometimes give their bellies a yellowish tinge, giving the blue whale its nickname of "sulfur bottom."
Life cycle: Blue whales live to about 50-90 years old! That's a long time!
Diet: When you think of the blue whale's diet, you may think that the blue whale eats a lot. Well...yes you are correct. But you may also think that they may eat a bunch of different types of seafood such as fish or squid..... but the true answer may shock you..... The blue whale only feasts on one type of seafood and only one species of it and it is called...
Krill!
Krill!
Blue whales eat krill - tiny, shrimp-like crustaceans that live throughout Earth's oceans. The huge whales can eat up to four tonnes of krill every day. But now krill is slowly disappearing in the Antarctic region due to pollution, overfishing and climate change impacts.
fun facts
fun facts
Did you know that the blue whale is one of the biggest animals on the planet?
Did you know that blue whales can grow to more than 100 feet long?
Did you know that they have big hearts? Their hearts are almost literally bigger than an adult human!
Did you know that they can weigh as much as 30 elephants?
Did you know that female blue whales are a little bigger than male blue whales?
Credit: https://atlanticwhales.com/humpbacks/index.htm
status
status
The status of the blue whale is currently ENDANGERED (EN).
The leatherback sea turtle
The leatherback sea turtle
The leatherback sea turtle is the largest turtle in the world (NMFS and USFWS 1992). They are the only species of sea turtle that lack scales and a hard shell. Leatherbacks are covered with a tough, leathery skin and have seven ridges running lengthwise down their backs. They are usually black with white, pink and blue splotches and no claws on their flippers.They have existed in their current form since the age of the dinosaurs.
etYmology
etYmology
Leatherback turtles are named for their shell, which is leather-like rather than hard, like other turtles. They are the largest sea turtle species and also one of the most migratory, crossing both the Atlantic and Pacific Oceans.
Life cycle: Leatherback sea turtles live for 45 years or more.
Diet: The leatherback sea turtle's diet consists of many many things from invertebrates to floating seaweed.
jellyfish
jellyfish
Jellyfish are a crucial part of a leatherback sea turtle's diet. They are the largest portion of the sea turtle's diet. Leatherback sea turtles eat jellyfish to support high energy intake.
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