The water under the microscope-up posture time! There are so many things in a drop of seawater!

Scoop up a bucket (or swallow a mouthful) of seawater, you can get all these things: super many plants and animals, some are familiar with, some are very mysterious ...

This picture of the Cow fork shows us a drop of seawater magnified 25 times times. In the oceans of the Earth, there are countless small animal plants, often collectively known as plankton.

Shorter than one-fourth inches, this delicate, transparent arthropod takes a long time to mature, but it is now able to tell the various parts of its body. We can clearly see the crab claws, and a pair of lingling eyes. Their complex lenses can be identified.

This curled filament represents one of the most primitive forms of life on Earth. As the first ring of evolution, cyanobacteria evolved the ability to absorb sunlight, make sugars and release oxygen, which is photosynthesis. Countless cyanobacteria in the ocean produce a lot of oxygen for today's Earth.

It is impossible to figure out how many diatoms exist in the world's oceans. The number is probably millions of four-second-level. This small, box-like single-celled organism is one of the algae, encased in a beautiful silica-walled cell wall. After they die, these cell walls will sink into the seabed, squeezing into stone.

This insect-like creature is the most common and important zooplankton in the ocean, because they are a source of large amounts of protein. They are small, shrimp-like crustaceans with teardrop-shaped bodies and long tentacles. Copepods are swimming athletes, with a well-developed nervous system, can be a powerful escape capture. They provide the most basic food for countless fishes. Some scientists believe that, together, the copepods will be the largest single animal mass on Earth.

of Hairy Jaw

This long, transparent organism is an arrow worm, which forms a larger carnivorous marine animal. For plankton, they are big, from one-eighth inches to five inches. They have a nervous system, two eyes, a mouth with teeth. They have a small spine on each side of their head to capture small plankton. Some can even inject a paralytic venom.

Almost all the fish lay eggs, and only a handful of them are born (including some sharks). Few species protect and nurture their eggs (the most famous of which is the hippocampus, which is played by males). Most fish, however, directly discharge large amounts of fertilized eggs into the sea, and most of these eggs are eaten.

A multiple-hairy section worm. They have a large number of tiny hair-like appendages that allow them to move freely in seawater.