I watched NOVA yesterday about your career in filming wildlife. Unaware of how many dangers your crew had faced, especially in Africa.
I love every wildlife show.
I have a plea of you before you pass on. Please correct Smilodon science, for it is highly likely that they are walrus tusks that museums glue or screw onto upper cat jaws. At least one of your shows has you in sympathy with this notion. I believe otherwise, since no cat jaw has ever been found with saber teeth attached. And no-one performed DNA testing of saber teeth to see if walrus. Please start the research, real research to finalize the issue. You believe it is all cat, while I believe it is walrus tusk glued to upper cat jaw.
If it is found that the Smilodon saber teeth are truly walrus tusks, it puts your career in wildlife as a stain on your record. So, please, initate a search for the final truth on Smilodon.
Question David, since it is rare that scientists make it to 100 years. I have a hypothesis that if you get 10-12 hours of sleep every night once you reach the age of 65, you have a good chance of making it to 100 years. I get on average 12 hours of sleep every night. And many women make it to 100, because, as I believe, they get 12 hours of sleep.
So, David, how much sleep do you get on average???????
AP