every thing about animals

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با سلام ::احترام:


دوستان عزيز تو اين تايپيك قصد داريم همه چيزو درباره ي حيوانات به انگليسي بنويسيم.:شاد2:

اولشو خودم شروع ميكنم اميدوارم اين تايپيك در ساخت كلمات و جملات انگليسي موثر باشه.:گل:

 

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What do animals see​

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Learn about What do animals see & Animal senses :​

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How animals see in the dark.....Some animals see differently than we do. Some animals, like bees, have cones for colors we can't see. Some animals have developed a highly-advanced senses of smell or specialized hearing abilities such as echolocation. Others have acquired eye adaptations for improved night vision​ Big Eyes The most interesting feature of nocturnal animals is the size of their eyes. Large eyes, with a wider pupil, larger lens and increased retinal surface collect more light. Some animal species have evolved tubular eyes as a means of increasing their size. Many nocturnal animals cannot move their eyes within the orbit. Instead, they have evolved extraordinary rotational ability in the neck. Owls, for example, can rotate their neck through 270° & this aids their vision. Some animals of the night have acquired a spherical lens and widened cornea to compensate for reduced eye movement. This combined with a wide cornea increases the animals field of view allowing the head and eyes to remain motionless. Mirrors Add Intensity, Eyes glow in the dark On a dark night, flash a bright light at your dog or cat's eyes & you notice that their eyes glow in the dark. It is the tapetum lucidum (meaning "bright carpet"), an adaptation for night vision. The tapetum is a thick reflective membrane, 15 cells wide, directly beneath the retina. It collects and re-emits light back to the retina a second time, giving the rods a second chance to absorb the image information, thus maximizing the little light available to them. As this light is reflected off the tapetum, the animal's eyes appear to glow. Although nocturnal animals see mostly crude or imperfect shapes, outlines and no colors, by maximizing their sensitivity to low light levels with the above adaptations, it is enough for them to hunt, feed and survive in the dark of night. In The Daylight Most nocturnal animals are often inactive during the day to avoid over-stimulating their highly sensitive eyes. Nocturnal animals have specialized pupils to shut out damaging bright day light. Nocturnal animals dilate their pupils to their circular maximum at night.

 

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Dolphin facts ​ Every dolphin has its own signature whistle to distinguish it from other dolphins, much like a human fingerprint The gender differences between a male and female dolphin are only noticeable close-up, with the female having a mammary slit (for birth) on the underside. Deep within a dolphin's body it's temperature is normally 35 degrees to 36.9 degrees, while it's outer body temperature is usually cooler. In comparison, man's body temperature is 37.3 degrees Dolphins usually live up to about twenty years, but have been known to live for about forty. Dolphins sleep in a semi-alert state by resting one side of their brain at a time Dolphins can help other sick or injured dolphins as often as they can, and they work as team if danger is nearby A dolphin can hold its breath for 5 to 8 minutes at a time Dolphins closest land relatives are thought to be cows, pigs and deer .

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