Endothermy is a synapomorphy in the Mammalia, even though it can have arisen in the (now extinct) synapsid ancestor; the fossil history would not distinguish these alternatives. Convergent in birds. Trabajan a un ritmo endiablado que es imposible seguir, ni falta que hace porque lo dejan todo perfectamente organizado. That's https://chancegfman.verybigblog.com/35685462/the-greatest-guide-to-empresa-de-transporte-con-grúa-pluma-en-la-rinconada