Mosquito sucking human blood

Blood sucker

Blood suckers take a variety of forms, many of them parasitic, from small invertebrates to larger mammals. Specialised features, such as the vampire bat's front teeth or the proboscis of the mosquito, help puncture the skin of their victim and there may also be chemical activity to prevent the victim's blood from clotting and ceasing to flow. Blood is full of nutrients, which makes it an attractive option for an easy meal.

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BBC News about Blood sucker