What is the size of the smallest predator on Earth? Detailed answer

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What is the size of the smallest predator on Earth? Detailed answer

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What is the size of the smallest predator on Earth?

In 2002, French biologists discovered the smallest of the terrestrial predators. This flagellated protozoan Picofagus flagellatus ("tiny flagellated eater") lives in the sea.

The size of the picophage in diameter is less than 0,003 mm. It has two flagella - short and long. The short one is used as a propeller, floating in the water, and the long one, covered with sticky hairs, catches its victims - bacteria, which are only 3 times smaller than the predator.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

How fast is the speed of light in a vacuum?

The propagation speed of electromagnetic waves (including light waves) in free space (vacuum) is one of the fundamental physical constants. Its huge role in modern physics is determined by the fact that the speed of light is the limiting speed of propagation of any physical influences and does not change when moving from one frame of reference to another. No signals can be transmitted faster than the speed of light.

The magnitude of the speed of light connects the mass and total energy of a material body through it, the transformations of coordinates, velocities and time are expressed when the reference system changes, it enters into many other relationships.

According to modern data, the speed of light in a vacuum is 299 meters per second.

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Random news from the Archive

Sound can travel even in a vacuum 14.08.2023

Finnish physicists have discovered that, under certain conditions, sound is able to travel through a perfect vacuum, contrary to the traditional understanding that sound requires a medium to propagate.

Sound propagation usually requires a material medium through which vibrations can be transmitted. On Earth, it could be air or water. Sound arises from vibrations that set atoms and molecules in motion within a medium. These vibrations are transmitted from one particle to another and are interpreted by the human ear as sound.

An ideal vacuum implies the absence of any material environment. In theory, under such conditions, sound should not propagate. However, scientists from Finland have discovered that the so-called "vacuum" can still contain electric fields that can cause vibrations in piezoelectric crystals. This may be a key factor in the study of sound transmission in empty space.

Piezoelectric materials are capable of converting mechanical energy into electrical energy and vice versa. Applying mechanical pressure to a crystal creates an electric field, and applying an electric field to a crystal causes it to deform.

Research has shown that sonic vibrations can cause mechanical stress in piezoelectric crystals. Using zinc oxide as a piezoelectric crystal, physicists have found that this crystal is capable of converting mechanical stress into an electric field under certain conditions.

By placing two such crystals next to each other, one of them can convert electrical energy back into mechanical energy, allowing sound waves to travel through a vacuum. This effect is most effective at certain frequencies and distances between crystals, allowing ultrasonic waves to "tunnel" through a vacuum.

This discovery could have important implications for quantum computer science and other areas of physics. It is important to note that although in most cases the transmission of sound waves through a vacuum is weak, there are situations where this occurs with high efficiency and without reflections.

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