Dogs, cats, ferrets, seals, elephants, mustelids and bears own the "Zonary" placentae.
Is there more for the question? Just because it has the prices there is still nothing about the amount.
A sudden inrush of water could over whelm animals and possibly kill them if the water is of a different type.
Asexual means not actual having intercourse like trees or plants they dont just walk to to the boy tree and say hey let mate