Water gogina marija

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Water gogina marija

  1. 1. Animals in the water.
  2. 2. Contents: Whales and dolphins; Seals; Sharks; Sea ray;
  3. 3. Whales and dolphins. Whales and dolphins are sea mammals. They eat small fish, plankton and small sea animals. Whales live in cold water. Dolphins live in oceans and rivers.
  4. 4. Seals. There are about 30 species of seals. They all can be classified into two types: eared seals and true seals. Eared seals have ears that can be seen, and their flippers work well on land. True seals have tiny ears, and their flippers work better in the water. Seals spend much of their time in water. But, they must return to the surface to breathe, just like other mammals. A seal's respiratory system is adapted for water. A seal can go for 40 minutes without a breath. This allows them to dive to a depth of over 2,000 feet. Seals are well designed to swim in water. Their bodies are very streamlined and their flippers propel them quickly through the water.
  5. 5. Sharks. Sharks are one of the better known predators in the sea. Many sharks have sharp teeth that are used to catch their food. The most dangerous shark is the great white shark, which can grow to over 20 feet long.
  6. 6. Sea rays. There are many species of rays in the ocean. Sea rays fly through the water like birds through air. The biggest rays are the manta rays. Some mantas can grow to over 25 feet from tip to tip, and can weigh 3,000 pounds.
  7. 7. Thank you for attention!!! Mary Gogina 5.b

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