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.
Vampire bats feed on sea lions' blood by creeping up on them from behind.
Vampire bats feed on sea lions' blood by landing close to their victims and then creeping up on them from behind. This means the bats are less likely to be seen or injured by large prey.
Vampire bats can consume half their body weight in blood in a single feed.
Vampire bats feed on sea lion blood in parts of South America. They can consume half their body weight in blood in a single feed. They attack areas where the skin is thinner, making it easier for the bats to get their blood meal.