Endothermy is actually a synapomorphy on the Mammalia, although it can have arisen within a (now extinct) synapsid ancestor; the fossil history isn't going to distinguish these choices. Convergent in birds. " Within this tale, these birds plucked dreaming toddlers from ponds and lakes, and shipped them to deserving households. https://damienea59u.answerblogs.com/26719709/5-easy-facts-about-stork-described