Frog eyes have eyelids , both an upper and a lower one.
Canthus
Canthus
Canthus
TarsorrhaphytarsorrhaphyTarsorrhaphyYesyes
Ducks have three eyelids: an upper eyelid, a lower eyelid, and a nictitating membrane that acts like a protective third eyelid.
M83- Lower Your Eyelids to Die in the Sun
It might be a kidney problem. See a doctor. It is serious even if it is not a kidney problem.
Swelling of lower extremities is called in very old books "dropsy", and is called in modern medicine "edema", or simply "retaining water". It can have a large number of causes, but one of the most common, especially in the elderly, is coronary insufficiency - your heart is not working as hard as it should. But I stress what I said above: It can have a number of different causes. If you have developed it, see your doctor.
Yes, the palpebrae (eyelids) are connected at both the lateral and medial canthus, forming the corners of the eye where the upper and lower eyelids meet. These connections help maintain the structure and function of the eyelids.
The inner canthus (or medial canthus) is the corner of the eye where the upper and lower eyelids meet near the nose. The outer canthus (or lateral canthus) is the corner of the eye where the upper and lower eyelids meet away from the nose.
The voice deepens in the morning due to the relaxation and swelling of the vocal cords during sleep, which causes them to vibrate at a lower frequency and produce a deeper sound.