Diver First view of the ocean

> Plastic trash has become a nightmare for sea turtles

Being a diver is an amazing profession. They can go deep into the ocean, see with their eyes, and record with their cameras. Through their lenses, we can see the magic and beauty of the ocean, but we also see something that doesn't belong in the ocean -- plastic waste floating around.

Zhou Qinan is a veteran diver who has been involved with the sea for ten years. He told us that sea turtles have a hard shell and are fast swimmers. They have few natural predators other than humans. But in recent years, turtle populations have declined dramatically, in large part because of eating waste from human society. In this episode of The Animals Are Coming, let's take a look at the ocean you may not know about with the footage of a diver.

Oysters can purify the sea?

Oysters, also called raw oysters, have been considered a good food for health since the golden Age of ancient Greece. On top of that, oysters seem to have a special ability -- the Internet has been full of claims that they can purify the sea.

To test the truth, Here Come the Animals came to the Beijing Museum of Natural History for an experiment. The first box of oysters will be put into slightly contaminated mode, and the tank will be filled with dirty water replaced from the aquarium's saltwater tank. This mimics normal, slightly contaminated sea water.

While the other box of oysters went into severe pollution mode, they were exposed to seawater mixed with spent motor oil, which simulated seawater with severe industrial pollution. When the oysters were exposed to different levels of pollution for two days, what happened to the quality of the water in the tanks?

Does the female mantis really eat her husband?

In the animation "Black Cat Sheriff" we are familiar with, there is such an episode: the moon is dark and the wind is high, and Mr. Mantis dies mysteriously. After a careful investigation by the Black cat Sheriff, Mr. Mantis found that in order to express his true love for his wife, he asked her to eat himself. Recalling all this, Mrs. Mantis confessed, "I loved my husband so much that I ate him."

The animation is certainly exaggerated, but we often hear that the female mantis will eat the male one. During the egg laying period, the female mantis needs to expend a lot of energy and physical strength, so the male mantis comes forward and is willing to sacrifice his life to become her food. But is this true or not? In this issue of The Animals Are Coming, we find out.

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