PIZZA LUNCH PODCASTS
Retracing the Evolution of African Penguins
Listen to the podcast:
"Penguins are 10 times older than humans and have been here for a
very, very long time," said Daniel Ksepka, Ph.D., a researcher at the National Evolutionary Synthesis Center (NESCent). Dr. Ksepka researches the
evolution of penguins and how they came to inhabit the African
Because penguins have been around for over 60 million
years, their fossil record is extensive. Fossils that Dr. Ksepka and his
colleagues have discovered provide clues about migration patterns and
the diversity of penguin species.
Dr. Ksepka goes into more depth
about how his research is piecing together the evolutionary puzzle of
penguins and other related bird species.
Watch the interview:
Read his blog, March of the Fossil Penguins.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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