Worms are bilateral animals with cylindrical bodies and no limbs. Size ranges from microscopic to over 58 meters in length. Most live in marine, freshwater environments or underground
Hermaphrodites produce both male and female gametes. About 65,000 animal species are hermaphroditic, 5% of all animals. Most hermaphroditic species exhibit some degree of self-fertilization. No known hermaphroditic species exist in mammals or birds
Centipedes are segmented arthropods with one pair of legs per segment. They have venomous forcipules modified from their first pair of legs. Size ranges from few millimeters to about 30 cm. Most species lack eyes but some have compound eyes
Fish evolved from filter feeders 535-0 Ma ago. First jawed fish appeared in Silurian, "Age of Fishes". Bony fish evolved after end-Devonian extinction. Teleosts (96% of fish) are bony fishes with protruding jaws
Slimes spawn underground in specific chunks below layer 40. Can spawn in swamps between layers 51-69 with light level 7 or less. Requires 3x2.1x3 free space and clear of obstructions. Only sizes 1, 2, and 4 naturally spawn
Over 30,000 fish species inhabit Earth's oceans and fresh water. Some fish species pose threats to humans or can be poisonous