19 May 2009

"Missing link" found

Today, at the American Museum of Natural History in New York, a revolutionary discovery -- one that will stand as a milestone for paleontologists and evolutionists everywhere -- was announced. Scientists based at the University of Oslo have discovered “Ida,” also known as Darwinius masillae, a 47-million-year-old fossil that has been proclaimed the “missing link” in connecting human skeletal structure to early mammals.

Scientists found Ida in Messel Pit, Germany and soon found out that she is about twenty times older than most fossils related to human evolution. What makes Ida so special is that despite her classification as an early prosimian (lemurs), she has certain undeniable human characteristics such as forward facing eyes and even an opposable thumb.

This is an exciting and validating day for scientists everywhere. Broadcaster and naturalist Sir David Attenborough has said: “This little creature is going to show us our connection with all the rest of the mammals.”

Head on over to The Link for pictures, video and more information about Ida and the team of researchers behind her. Also don’t miss what’s up at the open source journal PLoS One to read about the scientists’ findings.

In the mean time, please enjoy these TEDTalks relating to fossils and evolution (be sure to comment and relate them to this recent news!):

Zeresenay Alemseged

Louise Leakey

Jane Goodall

Susan Savage-Rumbaugh

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31 March 2009

TED and National Geographic: Shared mission, shared planet, shared stage

National Geographic shares stories that inspire people to care for our world, and TED leverages the power of ideas to change the world. It could be said that we share some common ground.

Unsurprisingly, almost half of the National Geographic Explorers, as well as a few members of their staff, have given TEDTalks. Below the jump is a list of links to all the talks that bring TED and National Geographic together.

Here's National Geographic Explorer and TED Prize 2009 winner Sylvia Earle:

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08 March 2009

4 great talks for International Women's Day

To celebrate March 8, International Women's Day, we suggest these four TEDTalks gems from some amazing speakers -- artists, scientists and economists who think deeply about the role of women.

Author and activist Isabel Allende discusses women, creativity, feminism -- and the power of passionate thinkers and doers:

The former Finance Minister of Nigeria, Ngozi Okonjo-Iweala, talks about one key opportunity to grow African economies -- by investing in women and the businesses they start:

(For more, watch Jacqueline Novogratz >>)

Scientist Nalini Nadkarni explores the world of the forest canopy -- and shares her findings with the world below, through dance, art and bold partnerships. She's working to inspire the next generation of women scientists:

The wonderful Nellie McKay sings "Mother of Pearl" (with the immortal first line "Feminists don't have a sense of humor") and "If I Had You" from her sparkling set at TED2008:

Find these four and many more astonishing women (including the legendary primatologist Jane Goodall, oceanographers Sylvia Earle and Tierney Thys, games theorist Brenda Laurel, Zipcar inventor Robin Chase ... ) on TED.com >>

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27 February 2009

Uncovering the footprints of early walking humans

As published today in the journal Science, a dig near Ileret, Kenya, has uncovered early human footprints in a streambed -- quite possibly, evidence of the first hominids who walked on two legs as a matter of course. In the Philadelphia Inquirer's well-reported story, "Footprints offer clue on path to modern man," TED2009 speaker Nina Jablonski offers her opinion on the fossil impressions:

... There is no doubt that the new prints are a rare find, and that the creatures who made them were spending not most, but all of their time on two feet, said Nina Jablonski, head of the anthropology department at Pennsylvania State University.

This would in turn allow for the continued development of a larger brain -- a process that already was under way as early humans spent less time in trees, freeing up their hands to accomplish more complex tasks.

NPR's story has more reactions from scientists, and more photos, including the image illustrating this post.

Learn more about the hunt for early humans in Africa via this TEDTalk from Louise Leakey >>

Photo: This fossil footprint found near Ileret, Kenya, is 1.5 million years old. These footprints are the oldest ever found of the human genus. Image: Matthew Bennett/Bournemouth University, via NPR.org

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23 July 2008

Digging for humanity's origins: Louise Leakey on TED.com

Louise Leakey asks, "Who are we?" The question takes her to the Rift Valley in Eastern Africa, where she digs for the evolutionary origins of humankind -- and suggests a stunning new vision of our competing ancestors. (Recorded February 2008 in Monterey, California. Duration: 15:35.)

Watch Louise Leakey's 2008 talk on TED.com, where you can download it, rate it, comment on it and find other talks and performances.

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