The Knowledge by Bike.

I was out and about in London all day yesterday, had a wander around Hyde Park and stuck my nose in the Sexual Nature Exhibit at the Natural History Museum. I urge you to make use of Britain's free public museums while you (still) can.

I was not on my bike, but I did see a lot of people about, especially in the park. One individual caught my eye on the road outside my house. The cyclist appeared lost, and was rearranging a map on a handlebar fixing. I asked him whether he was lost and he replied; "No mate, I'm doing The Knowledge."

Why do giant squid have blue blood?

 A few weeks ago I attended at cinema showing of Inside Nature's Giants: The Giant Squid. In the series a team of experts dissect and examine some of the World's largest animals.

The giant squid (ref)

The Giant Squid is a little understood member of the class Cephalopoda, the cephalopods, known as Architeuthis dex (among other names). They are truly amazing animals, growing up to 20 meters long without a bone in their body (only a beak formed of protein and chitin).

Among the mysteries which were discussed in the programme and the Q&A session with some of the cast afterwards was the question;

"Why do giant squid have blue blood?"