The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS).AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype.IDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype.
Black Tortoise. The Black Tortoise or Black Turtle is one of the Four Symbols of the Chinese constellations. Despite its English name, it is usually depicted as a turtle entwined together with a snake. Further, in East Asia, it is not called after either animal but is instead known as the Black Warrior under various local pronunciations.
Spiny Soft-shell Turtle (Apalone spinifera spinifera) Identification: Smooth, flat, rubbery, skin-covered shell lacks scutes and has flexible edges. Brown or olive carapace covered with black circles and spots in males and juveniles, dark blotches in females. Nose long and pig like, all feet fully webbed. Adult female carapace length: 7 to 19 inches (18 to 48 cm). Adult male carapace length: 5 to 9.25 inches (12.7 to 23 cm). Habitat: Rivers, lakes, impoundments with sand or mud bottom with little vegetation. Habits: Will bask on logs or banks; often bury themselves in sand or mud in shallow water.