@ Dr. Heinz Lycklama

#4 - Haeckel’s Embryos

nThe embryos shown are (left to right) fish, salamander, tortoise, chick, hog, calf, rabbit and human – representing 5 of the 7 vertebrate classes.  Haeckel omitted two classes of vertebrate (jawless and cartilaginous fishes) entirely, and half of the embryos are mammals - thus using a biased sample