The lens of the eye is normally transparent, allowing light through to the retina in back of the eye. A cataract causes the lens of the eye to become cloudy or opaque, decreasing or eventually blocking light to the retina, causing impaired vision and eventually blindness. Cataracts can be hereditary or caused by disease such […]
Catfish are a popular aquarium fish and are easy to care for. There are many different types of catfish. They are recognized by the barbels that look like whiskers on each side of the mouth, which is how they got the name “catfish.” They vary in size from less then an inch long to over […]
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