ANTS
Ants do not have lungs. There are no blood vessels. The heart is a long tube that pumps colorless blood from the head back to the rear and then back up to the head again. The blood kind of coats the insides of the ants and is then sucked into the tube and pumped up to the head again. The nervous system of ants consists of a long nerve cord that also runs from head to rear with branches leading to the parts of the body, kind of like a human spinal cord.The abdomen of the ant contains two stomachs. One stomach holds the food for itself and second stomach is for food to be shared with other ants.
BIRDS
Air sacs may make up 1/5 of the body volume of a bird. Pigeons can reach speeds up to 100 mph. Swifts, doves, falcons, and sandpipers can approach 200 mph. BIRDS DON"T HAVE BLADDER !! Other body organs are similar to human beings.
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