Biology Videos 

Is Height All In Our Genes?

Dr. Joe Hanson is tall. Most of the people in his family are tall. Does that mean his son will be tall? Turns out the inheritance of height is a lot more complicated than we thought. Scientists know that nature (genes) and nurture (environment) both play a role, but after more than a century of questions, we’re only just now starting to get some answers. In this episode of It’s Okay to Be Smart, learn how the average height of humans changed over time due to agriculture, migration, and industry.…

Read More
Animals Genetics Videos 

Science with Sophie: Dogs

Do dogs really exist? Okay, we know dogs really exist. But how do you know if something really exists if you can’t see it? On this episode of Science with Sophie, Sophie explores why it’s so important to do your own research, as well as how genetic traits as passed down. And as a bonus, you’ll learn all about the history of dogs, complete with at least five different canine cameos. Do the science experiment with Sophie To do the science experiment, you’ll need these things: something to write on something…

Read More
DNA Analysis Reveals Four Distinct Giraffe Species Animals Biology 

DNA Analysis Reveals Four Distinct Giraffe Species

By Katherine Lindemann Researchers have long recognized only a single species of giraffe, thought to be made up of several subspecies. However, a research collaboration has now identified four distinct species. Conservation biologist Julian Fennessy of the Giraffe Conservation Foundation, geneticist Axel Janke of the Senckenberg Research Institute, and their colleagues collected and analyzed samples from giraffes across the African continent. Their results appear in the journal Current Biology. ResearchGate: When and why did you start genetically testing giraffes across Africa? Julian Fennessy: When I approached Axel Janke to help…

Read More
Isle Royale Wolves: Only three wolves appear to remain at Isle Royale National Park. (Rolf Peterson) Animals Environment 

Only Three Isle Royale Wolves Remain

Wolves are pack animals, yet on the Isle of Royale National Park (located in Lake Superior) only three wolves remain. Researchers from Michigan Technological University observed the wolves during the annual Winter Study, and the lone trio appears to be all that is left of the nine Isle Royale wolves seen last winter. The park offers outstanding possibilities for research in a remote ecosystem, and the annual report of the Ecological Study of Wolves on Isle Royale, released today, marks the project’s 57th year of observing Isle Royale wolves and…

Read More
Tapeworm in brain tissue (CDC) Biology Health 

Tapeworm Removed from Man’s Brain

Doctors in the UK recently removed a very rare tapeworm from a man’s brain that had been living there for four years. During its residency, the worm traveled five centimeters from one side of the brain to the other before it was detected and removed. Following the successful operation, a team took the opportunity to sequence the genome of this rare and poorly understood parasite. The tapeworm, Spirometra erinaceieuropaei, has been reported only 300 times worldwide since 1953 and never before in the UK. The parasite causes sparganosis: inflammation of…

Read More
Sacramento Valley Red Fox (Ben Sacks, UC Davis) Animals Biology 

Red Fox Genome Examined

Researchers at University of California, Davis are studying the genome of the red fox, the world’s most widely distributed land carnivore. Some surprising findings about the origins, journey and evolution of the red fox have come to light. The new genetic research suggests that the first red foxes originated in the Middle East before beginning their journey of colonization across Eurasia to Siberia, across the Bering Strait and into North America. Reproductively speaking, the red foxes of North America and Eurasia have been almost entirely isolated from one another for around 400,000 years.…

Read More
error: