-
This friend is talking about ostriches.
Ostriches bury their heads in the sand when they are in danger, and ostriches live in the hungry Antarctic zone, where the sun is weak and the cold air rising from the ground intersects with the cold air at low altitudes, resulting in a shimmering mist due to scattering. Usually the ostrich always stretches its neck to look through the mist, and once frightened or detects the enemy, it simply sticks its periscope-like neck flat to the ground, curls up its body, and disguises its dark brown feathers as stones or bushes, plus the cover of the mist, it is difficult to be detected by the enemy. In addition, the ostrich keeps its head and neck close to the ground, which has two functions: one is to hear distant sounds, which is conducive to avoiding danger early; Second, it can relax the muscles of the neck and better increase fatigue.
In fact, no one has ever actually seen an ostrich bury its head in the sand, which would suffocate the ostrich to death.
-
Ostrich! Ostriches bury their heads in the sand when they are in danger.
-
It seems that there is no conclusive evidence that it is an ostrich, which may be a misunderstanding.
-
The ostrich sticks its head into the sand because it wants to eat some sand to help digest the food in the stomach.
To avoid danger, ostriches will lie underground and hide, sticking only their heads out. This habit was later mistaken for ostriches burying their heads in the sand when they were in danger. Ostriches do not avoid their enemies because they are afraid of danger.
Studies have shown that ostriches protect themselves by skillfully using the intense light layer formed by the reflected light produced by the intense sunlight shining on the desert surface and the diffuse reflection of the hot air.
It hides its body beneath the light layer, and its head is like a periscope watching for the enemy's movements. If spotted by an enemy, the ostrich will fight back. Relying on its tall body and strong legs, it can compete with the sharp javelins of the natives, and fierce beasts such as lions and cheetahs cannot kill it in a short time.
-
Ostriches bury their heads in the sand, usually to swallow stones.
This is because ostriches have no teeth, but they have unusual stomachs, and they will swallow small stones in large quantities to break up food to help digestion, while the stones will remain in the stomach and not be excreted.
Ostrich's digestive system:
The digestive system of an ostrich is composed of the oropharyngeal cavity, esophagus, glandular stomach, muscular stomach, small intestine, large intestine, cloaca, liver, and pancreas. There are no lips and teeth, replaced by beaks; The esophagus is easily dilated and there is no bursage; The glandular stomach and the muscular stomach are directly communicated by the large glandular gastric muscle appetite; The cecum has two; The liver has no gallbladder.
-
No. In fact, the head is lowered to the ground and the feathers are erected.
Ostriches live in hot desert areas, where the sun shines strongly, and the hot air rising from the ground, intersecting with the cold air at low altitudes, appears as a result of scattering a shimmering mist. Usually the ostrich always stretches its neck to look through the mist, and once frightened or detects the enemy, it simply sticks its periscope-like neck flat to the ground, curls its body in a ball, and camouflages its dark brown feathers as stones or bushes, plus the cover of the mist, it is difficult to be detected by the enemy.
In addition, the ostrich keeps its head and neck close to the ground, which has two functions: one is to hear distant sounds, which is conducive to avoiding danger early; Second, it can relax the muscles of the neck and better eliminate fatigue.
-
One is to hear distant voices and avoid danger as soon as possible; The second is to relax the muscles of the neck and eliminate fatigue.
Ostriches are the largest flightless birds in existence. The male is about a meter tall and weighs 155 kilograms. The neck length accounts for almost half of the body length, and the female bird is slightly smaller.
Ostrich eggs are the largest eggs in modern times. Most of the male's body feathers are black, but the wings and tail feathers are white; Females are mostly brown. most of the head and neck are pale red to light blue; slightly downfeathered; The head is small, the beak is short and slightly wider; The eyes are large and brown with thick black eyelashes.
They live in desert steppe areas. Gregarious, diurnal. Sensitive sense of smell and hearing, good at running, with the help of wings when running, one step can span 8 meters, the speed can reach 70 kilometers per hour, and can jump up to meters.
-
The ostrich keeps its head and neck close to the ground, and has two functions:
One. It is possible to hear distant sounds, which is conducive to avoiding danger early.
Two. It relaxes the muscles of the neck and better relieves fatigue. In fact, no one has ever actually seen an ostrich bury its head in the sand.
-
Many people know that when the ostrich encounters danger and does not have time to escape, it will put its head and neck flat on the ground or bury it in the sand. People ridicule the comical behavior of the ostrich and use the term "ostrich policy" to describe people who dare not face reality. In fact, people misunderstand ostriches.
If frightened or aware of an enemy, the ostrich will lay its neck flat on the ground and curl up in a ball, which is actually a way for the ostrich to use its dark brown feathers to disguise itself as rocks or bushes in times of crisis.
The African ostrich (scientific name: Struthio camelus) belongs to the ostrich family of the order Ostriches and is the largest bird in the world, with adults up to 2 years tall5 meters, male ostriches can weigh up to 150 kg.
The slender neck like a snake supports a small head, with a short, flattened, triangular mouth composed of several sheaths, the main feature is that the keel process is underdeveloped, unable to fly, and it is also the only two-toed bird in the world, with dangerous toenails about 7 cm long on each big toe of its feet, and its hind limbs are thick and powerful, suitable for running. Living in the desert grasslands and savanna areas of Africa, it is widely domesticated in many countries because of its high economic value of plumage, skin and meat, fast growth, strong fecundity, easy feeding and strong disease resistance. <>
The posture of a bird flying is very beautiful.
The wings of the porphyrine are strong and powerful. >>>More
Flower language of the bird of paradise:
1. No matter when, no matter where, never forget that the person you love is waiting for you. >>>More
The butcher of the birds, the shrike bird: how to kill the prey and eat it directly, it looks too fierce.
The airplane was not inspired directly by the bird, but indirectly from the bird. >>>More
Egret kingfisher.
Sandpiper top chicken. If it's not for these kinds of birds, you can go to my space album to find it, all the wild birds in China**, there are basically all in it, and when you find the bird, tell me the name of the bird, and I'll tell you how the bird feeds it. >>>More