Pikaia Enamel Pin (Pikaia gracilens) marchei is a herbivorous browser feeding

is a herbivorous browser feeding on a variety of leaves

Skull Height: 2

Skull Length 33 cm (12

The Gambian pouched rat is a species of rodent native to West Africa

This specimen is one of the set of seven wonderfully detailed half scale models

Pikaia Enamel Pin (Pikaia gracilens) marchei is a herbivorous browser feedingMeet Pikaia gracilens, the humble wormlike swimmer from the Cambrian seas (~505 million years ago) that may just be one of your oldest relatives. At about 5 cm long, it didnt look like muchjust a slender, ribbon bodied creature wriggling through the Burgess Shale ecosystem. But Pikaia had something revolutionary: a notochord, the flexible rod that would eventually evolve into a backbone. That makes this little swimmer a crucial early chapter in