A tree can usually survive if less than half its circumference is girdled. Even so, the area with the embedded material is weak and susceptible to breaking. What happens to a girdled tree? Girdling means cutting through the outer surface deeply enough to completely sever the cambium around the tree’sRead More →

The animals that can possibly achieve immortality under ideal conditions, such as sea squirts, certain corals, Hydra, and Turritopsis nutricula (the immortal jellyfish), often activate telomerase. … Out of the animal immortality A-list, sea squirts and starfish have genes that most closely resemble those of humans. Is there a jellyfishRead More →

Narcissus was a Roman athlete, likely a wrestler, from the 2nd century AD. He is best known to history as the assassin of the Roman Emperor Commodus, by whom he was employed as a wrestling partner, and personal trainer in order to train Commodus for his self-indulgent appearances in theRead More →