Hidden from view under the sand, a hunter is searching for a meal. It's a hungry bloodworm and it has spotted a tiny crab. Suddenly, an alien-like proboscis shoots from its head revealing four sharp fangs. The worm injects venom into its prey, paralyzing and killing the little crab. Then the bloodworm slurps up the crab's soft insides Filled with information perfectly suited to the abilities and interests of its primary-grade audience, this colorful,...