Brains - comparison, 5 specimens sunk in the material

MACHINE TRANSLATION (not authorised yet)

In a transparent plastic block, 5 natural specimens are sunk - brains of animals representing five different groups of vertebrates:

1 - fish (carp)
2 - amphibian (frog)
3 - reptile (snake)
4 - bird (pigeon)
5 - mammal (rabbit)

Block wrapped in a bubble pocket and placed in a lockable cardboard box. Teaching aid dimensions: 16.5 x 8 x 2.5 cm.