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Lectures for a New Year: Parrots, the Universe, and Everything

Today I've got a doozy of a lecture for you. I present what is likely Hitchhiker's Guide to the Galaxy author Douglas Adams's last public appearance -- he died of a heart attack on May 11, 2001, mere days after this talk at UC San Diego was filmed. This is a man in the prime of his life, about to be struck down. And he is cracking wise throughout, telling truly wonderful, engaging stories, but with a shattering message: just as our world is being pulled together by information technology, we are destroying species faster than ever before (unless you count, as he says, the points at which Earth has been hit by asteroids).

In the lecture, Adams recounts his hilarious adventures traveling the world studying endangered wildlife, learning about the odd, endearing lives of vanishing species...and what animal extinction means for the lives of humans. The talk was given about a decade after Adams published his favorite book, Last Chance to See. He took to the stage eleven years after the book was released, to tell its story -- this was a lecture of love, not promoting a hot new book. As Adams says in his introduction: "Virtually every author I know, their own favorite book is the one that sold the least."

Even if you're a fan of The Hitchhiker's Guide, you may not have read Adams's other work, or even heard of it. (I haven't read Last Chance to See and have only the vaguest familiarity with his Dirk Gently novels.) This lecture will convince you that the man's most under-appreciated book is well worth a read.

Topics: a monkey looking at a lemur, advances in twig technology, dragons, snakes, the Venom Fridge, forgetting how to fly, the Blue-footed Booby, the Friendship Store, condoms for recording dolphins, humans, and Carl Sagan.

Not covered: life, the universe, and everything.

For: anyone interested in nature, people who like jokes, fans of Douglas Adams, anyone who enjoys a good yarn about the natural world, and those who are not scandalized by a fleeting f-bomb or two.

Representative quote:

So just imagine if you will, this male Kakapo sitting up here, making all this booming noise which, if there's a female out there--which there probably isn't--and if she likes the sound of this booming--which she probably doesn't--then she can't find the person who's making it! (Laughter.) But supposing she does, supposing she's out there--but she probably isn't--she likes the sound of this booming--she probably doesn't--supposing that she can find him--which she probably can't--she will then only consent to mate if the Podocarpus tree is in fruit! (Laughter.)

Now we've all had relationships like that ... (Laughter.) (Applause.)

Further Reading

The book is Last Chance to See, and it was made into a BBC 2 series featuring Stephen Fry. There was also a BBC Radio series in 1989, which is now available online for free...if you're in the UK.

If you're unfamiliar with Adams (which I find unlikely), check out his website, which notes that there is a Douglas Adams Memorial Lecture series. Hmm, I'll have to check that out. See also, his Wikipedia entry. Oh, and if you're going to be in London on March 11, 2012, there's a 60th birthday celebration for DNA!

Transcript

A complete transcript is available. The YouTube video does not have proper closed captions.

Suggest a Lecture

Got a favorite lecture? Is it online in some video format? Leave a comment and we'll check it out!

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Courtesy Murdoch University
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Animals
Australian Scientists Discover First New Species of Sunfish in 125 Years
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Courtesy Murdoch University

Scientists have pinpointed a whole new species of the largest bony fish in the world, the massive sunfish, as we learned from Smithsonian magazine. It's the first new species of sunfish proposed in more than 125 years.

As the researchers report in the Zoological Journal of the Linnean Society, the genetic differences between the newly named hoodwinker sunfish (Mola tecta) and its other sunfish brethren was confirmed by data on 27 different samples of the species collected over the course of three years. Since sunfish are so massive—the biggest can weigh as much as 5000 pounds—they pose a challenge to preserve and store, even for museums with large research collections. Lead author Marianne Nyegaard of Murdoch University in Australia traveled thousands of miles to find and collected genetic data on sunfish stranded on beaches. At one point, she was asked if she would be bringing her own crane to collect one.

Nyegaard also went back through scientific literature dating back to the 1500s, sorting through descriptions of sea monsters and mermen to see if any of the documentation sounded like observations of the hoodwinker. "We retraced the steps of early naturalists and taxonomists to understand how such a large fish could have evaded discovery all this time," she said in a press statement. "Overall, we felt science had been repeatedly tricked by this cheeky species, which is why we named it the 'hoodwinker.'"

Japanese researchers first detected genetic differences between previously known sunfish and a new, unknown species 10 years ago, and this confirms the existence of a whole different type from species like the Mola mola or Mola ramsayi.

Mola tecta looks a little different from other sunfish, with a more slender body. As it grows, it doesn't develop the protruding snout or bumps that other sunfish exhibit. Similarly to the others, though, it can reach a length of 8 feet or more. 

Based on the stomach contents of some of the specimens studied, the hoodwinker likely feeds on salps, a jellyfish-like creature that it probably chomps on (yes, sunfish have teeth) during deep dives. The species has been found near New Zealand, Australia, South Africa, and southern Chile.

[h/t Smithsonian]

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Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0
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Space
Study Suggests There's Water Beneath the Moon's Surface
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Gregory H. Revera, Wikimedia Commons // CC BY-SA 3.0

Astronauts may not need to go far to find water outside Earth. As CNN reports, Brown University scientists Ralph E. Milliken and Shuai Li suspect there are significant amounts of water churning within the Moon’s interior.

Their findings, published in the journal Nature Geoscience, lean on the discovery of glass beads encased in the Moon’s volcanic rock deposits. As recently as 100 million years ago, the Earth’s moon was a hotbed of volcanic activity. Evidence of that volatile time can still be found in the ancient ash and volcanic rock that’s scattered across the surface.

Using satellite imagery, the researchers identified tiny water droplets preserved inside glass beads that formed in the volcanic deposits. While water makes up a small fraction of each bead, its presence suggests there’s significantly more of it making up the Moon’s mantle.

Milliken and Li aren't the first scientists to notice water in lunar rocks. In 2008, volcanic materials collected from the Moon during the Apollo missions of 1971 and 1972 were revealed to contain the same water-flecked glass beads that the Brown scientists made the basis of their recent study. They took their research further by analyzing images captured across the face of the Moon and quickly saw the Apollo rocks represented a larger trend. "The distribution of these water-rich deposits is the key thing," Milliken said in a press statement. "They're spread across the surface, which tells us that the water found in the Apollo samples isn't a one-off. Lunar pyroclastics seem to be universally water-rich, which suggests the same may be true of the mantle."

The study challenges what we know about the Moon's formation, which scientists think occurred when a planet-sized object slammed into the Earth 4.5 billion years ago. "The growing evidence for water inside the Moon suggests that water did somehow survive, or that it was brought in shortly after the impact by asteroids or comets before the Moon had completely solidified," Li said. "The exact origin of water in the lunar interior is still a big question."

The findings also hold exciting possibilities for the future of space travel. NASA scientists have already considered turning the Moon into a water station for astronauts on their way to Mars. If water on the celestial body is really as abundant as the evidence may suggest, figuring out how to access that resource will definitely be on NASA's agenda.

[h/t CNN]

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