I am always surprised at how well the ducks will tolerate the cold on their feet.

Recently, their favourite little pond partially froze; it had a thin layer of ice in places, but the ducks settled on the icy parts and even napped.

Do they have duckie antifreeze in their feet??

Actually, they sort of do. Through a process called counter-current heat exchange, their bodies literally lower the temperature of the blood headed for their feet and warm it up again as it heads back to their hearts.

It’s so effective that in winter, mallards only lose five per cent of their total body heat through their feet. That’s a pretty ingenious system.

It could be a great system for humans too but I think I prefer socks and footwear instead. 🙂
Happy Wednesday.





























