
Though they are most famous as parasites that feed by attaching themselves to larger hosts and sucking blood, leeches are actually a diverse group of worms.Nature's Children series provides young readers (Ages 8-10) with fascinating information about the planet's most...

Though they are most famous as parasites that feed by attaching themselves to larger hosts and sucking blood, leeches are actually a diverse group of worms.Nature's Children series provides young readers (Ages 8-10) with fascinating information about the planet's most...