'The saliva of these worms prevents blood from clotting with an anticoagulant called hirudin'
Leeches
HUMAN PARASITES: The saliva of these worms prevents blood from clotting with an anticoagulant called hirudin
The saliva of these worms prevents blood from clotting with an anticoagulant called hirudin
The saliva of these worms prevents blood from clotting with an anticoagulant called hirudin
HUMAN PARASITES
Leeches
HUMAN PARASITES