Scientific drawings of shrimp & crab by Haeckel, beautiful scientific illustrations of marine biology ocean sea life. Great gift for ocean animal lovers, marine biologists, students, fisherman, science teachers, etc. Beautiful scientific drawing by Haeckel, a German biologist and naturalist. Classic scientific illustrations of shrimp & crab. Great science teacher shirt, marine biologist shirt, fisherman shirt, crabbing shirt, marine biologist shirt, etc.