Richard Collins
speaker
767 appearances
17 recordings
1 series
first heard Apr 2026
last heard 14 Sep
Richard Collins’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 17 in all, peaking in Aug 2026 with 4.
Appearances
Now, why all the little birds in the garden should have bare legs in the cold of the winter is a slight mystery.
They, of course, in flight, they retract their legs.
And even when they're sitting on branches, they cover them up with the rest of their bodies.
But it is, there's mystery here.
shuffle.
they have a trick up their sleeves with the legs and the temperature of those legs.
It's a heat exchanger, what engineers would call a heat exchanger.
The blood coming up in the veins, coming back to the heart from the cold blood from the feet, passes the warm blood going down closely, the arterial blood going down.
And the heat in the arterial blood, some of it, is transferred to the cold blood going up.
And this cuts down on heat loss.
And it's a very clever system of minimizing the penalty of heat loss through having long, bare legs.
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You come from a part of India, Aurangabad, which is in the lowlands, Maharashtra.
And as the British used to say when they were in India,
It's beastly hot in the lowlands of India.
Now, yet you choose to study something that's 4,000 meters up in the Himalaya.
Now, that is an extraordinary decision to make.
How did you come to make such a decision?
But the time involved in that must have been enormous.
There's a fellow called Matthiessen, is that his name, who wrote a book on the snow leopard.
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