This word is Latin for “wonderful net.” It is pronounced –
It sounds like a bottle of wine to me….
Actually, this is what keeps duck feet from freezing in cold water.
According to Bird Note, “Rete mirabile is fine, netlike pattern of arteries that interweaves warm blood from a bird’s heart with the veins carrying cold blood from its feet and legs. This interweaving warms the cold blood in these veins before it reaches the bird’s heart. This system keeps the bird’s legs and feet warm, even without leggings and slippers.”
And what about the tiny songbirds feet? “This birds’ feet lack sweat glands and stay dry. So, there is no danger of them freezing to metal perches.”