Tag: <span>ended</span>


Which way’s up? Figuring out how our spinal cord ended up on our back

Agen Sabung Ayam Proboscis to the correct, collar in the middle, and freakiness throughout. (credit: John Gerhart) Our left and correct sides are largely mirror images of every other. That makes us bilaterians, a massive group of animals that range from tiny flies to giant whales. But we and the whales share a significant difference…