“Olaf” (pictured) is the first amphibian born via IVF. Previously thought to be extinct, 300+ members of this critically endangered species, the Puerto Rican Crested Toad, were born from sperm previously frozen – hence named after the Disney character – in order to save the species from extinction.
"Olaf" (pictured) is the first amphibian born via IVF. Previously thought to be extinct, 300+ members of this critically endangered ...