Question

Опишите особенности строения глаз у лемура

Answer 1

Глаза без белка,маленький зрачок,и ещё лемур медленно моргает 

Answer 2

Structure of Lemur Eyes

Lemurs are primates that are native to the island of Madagascar. They have several unique features, including their eyes. The structure of lemur eyes is adapted to their specific needs and environment.

1. Eye Placement and Size: Lemurs have forward-facing eyes, which provide them with binocular vision. This allows them to accurately judge distances and perceive depth. The size of lemur eyes varies depending on the species, but they are generally large in proportion to their head size.

2. Nocturnal Adaptations: Many lemur species are nocturnal or have crepuscular activity patterns, meaning they are most active during dawn and dusk. To adapt to low light conditions, their eyes have certain features that enhance their night vision.

- Tapetum Lucidum: Lemurs have a reflective layer called the tapetum lucidum behind their retina. This layer reflects light back through the retina, increasing the amount of light available for photoreceptor cells to detect. It enhances their ability to see in dim light conditions. - Large Pupils: Lemurs have large pupils that can dilate to allow more light to enter the eye. This helps them gather as much available light as possible in low light environments.

3. Color Vision: Lemurs have dichromatic color vision, meaning they have two types of color-sensitive cone cells in their eyes. This allows them to perceive a limited range of colors. The specific colors they can see may vary among different lemur species.

4. Visual Field: The visual field of lemur eyes is relatively wide, allowing them to have a broad field of view. This is beneficial for detecting predators and navigating their arboreal environment. The exact range of their visual field may vary depending on the species.

5. Other Adaptations: Lemurs have other adaptations in their eyes that help them survive in their natural habitat:

- Protective Eyelids: Lemurs have both upper and lower eyelids to protect their eyes from debris and sunlight. - Binocular Vision: The forward-facing placement of their eyes allows for binocular vision, which helps with depth perception and accurately judging distances.

In conclusion, the eyes of lemurs have several unique features that are adapted to their specific needs and environment. These adaptations include forward-facing eyes for binocular vision, large pupils and a tapetum lucidum for enhanced night vision, dichromatic color vision, a wide visual field, and protective eyelids