Topic: Genetics & Evolution

November 14, 2017 Human Size Evolution - Our ancestors and their extinct relatives grew in height and weight at different times.
October 30, 2017 Masked Dinosaur - Remnants of pigments in the fossils of dinosaur feathers provide clues to how they looked and behaved in life.
October 20, 2017 Beak Evolution - More than a century of backyard bird feeding may have lengthened one bird species’ beaks.
October 17, 2017 Skin Tone Genes - The genetic origins of dark and light skin.
October 9, 2017 Identical Triplets - A listener asks if identical triplets are possible.
October 5, 2017 Origins of RNA - Ephemeral pools of water may have been the cradle of life.
September 22, 2017 Poison Frogs - Why don’t poison frogs poison themselves?
September 21, 2017 Bash the Bug - Citizen scientists help search for the best treatments for tuberculosis.
September 20, 2017 Sizing Up Extinction - Being the “right-size” helps protect species from extinction.
September 19, 2017 Butterfly Wing Patterns - Butterfly wings help reveal the genetics underlying coloration patterns.
September 15, 2017 DNA Cargo Robots - DNA robots move and sort nanoscale-sized payloads.
September 7, 2017 Environmental DNA Collection - Conducting a census of species using environmental DNA.
September 1, 2017 Leaf Size Limits - What limits the maximum size of a plant’s leaves?
July 24, 2017 Whale Diet & Genetics - A genetic difference between the two types of whales that could partially explain why some became so gigantic.
July 10, 2017 Mosquito-Killing Fungi - Scorpion and spider genes boost a fungi’s mosquito-killing ability.
June 26, 2017 Egg Shape - An exhaustive analysis of birds and their eggs may explain why eggs vary in shape.
June 2, 2017 Flightless Genes - Researchers identify genetic factors that grounded a species of birds whose relatives all can fly.
May 29, 2017 Giant Whale Evolution - A changing climate three million years ago drove whales to evolve to the giant size they are today.
May 8, 2017 Albatross Satellites - High-resolution space satellites monitor threatened albatross populations in remote areas of the world.
April 26, 2017 The Amino Acids of Life - How did the proteins forming life on earth come to be formed from just twenty of the the many possible amino acids available?
April 25, 2017 Dinosaur Proteins - Ancient dinosaur proteins could reveal how the Mesozoic creatures dealt with high carbon dioxide levels.
April 24, 2017 Star-Nosed Moles - What star-nosed moles reveal about the specialized mammalian brain.
April 21, 2017 Oxygen-Deprived Mole-rats - An odd-looking little mammal uses a trick from the plant kingdom to survive without oxygen.
March 10, 2017 Avian Athletes - Scientists are learning from birds’ amazing metabolisms to help human athletes perform better on the ground.
January 27, 2017 Crowd-sourcing Better Tomatoes - Researchers turn to panels of taste testers to identify key flavor chemicals lost during the past 100 years of commercial tomato breeding.
January 23, 2017 Mapping Extinct Brains - Scientists scanned preserved brains of extinct Tasmanian tigers in an attempt to better understand their behavior and life history.
January 2, 2017 Arctic Camels - Camels seem perfectly suited to life in the desert, but they may have evolved those traits in the high Arctic.
December 30, 2016 Sizing Up Dogs II - A listener asks whether it's true that large dogs don't live as long as small dogs.
December 14, 2016 Carbon Monoxide Antidote - Researchers develop the first fast-acting antidote for carbon monoxide poisoning.
December 13, 2016 Pollution-Tolerant Fish - The Atlantic killifish has evolved the ability to survive in toxic waters.
December 7, 2016 Binge Drinking Teens - Could teenage binge drinking have effects on the next generation, even if they’re never exposed to alcohol?
December 2, 2016 Fruit Flies & Beer - Beer owes its distinctive aroma to fruit flies.
November 8, 2016 Ivory Forensics - Chemical analysis of poached ivory reveals that elephant slaughter is massive and recent.
November 4, 2016 Smoking Gene Mutations - Researchers discover that the DNA mutations by which smoking causes cancer are more complicated than previously thought.
October 31, 2016 Chimpanzees & Bonobos - Even though the Congo River keeps them apart today, chimpanzees and bonobos managed to interbreed several times in the past.
October 25, 2016 GM Tobacco vs. Malaria - Genetically engineered tobacco plants produce potent artemisinin - a highly effective malaria drug - at a fraction of the usual cost.
October 24, 2016 Right-Handed Fossil - Analysis of a nearly two million-year-old jaw fossil from east Africa reveals clues to the evolution of the human brain.
October 18, 2016 Sickle Cell Gene Editing - Scientists use a powerful new gene editing tool to treat sickle cell disease.
October 17, 2016 Feather Mystery Solved - The berries of invasive honeysuckle plants are causing birds in eastern North America to change color.
September 19, 2016 Black Pig Preferences - Across the globe, humans have selected pigs with genetic mutations for black coats.
September 14, 2016 Environmental DNA Collection - Conducting a census of species using environmental DNA.
September 12, 2016 Giraffe Genetics - A DNA analysis reveals that giraffes make up four different species instead of just one.
September 7, 2016 Caffeine Genetics - A gene variant makes some people feel a buzz from very little caffeine.
August 19, 2016 Mouse Models of Addiction - New strains of lab mice are helping scientists understand complex disorders.
August 17, 2016 Living Fossil Squirrel - Scientists search for an arboreal African rodent that’s changed little in over thirty million years.
August 3, 2016 Smoke Resistance - A random mutation allowed our ancestors to stay relatively healthy despite exposure to toxic woodfire smoke.
July 29, 2016 Targeting Aggressive Cancers - Using genetic fingerprinting to diagnose and treat an aggressive cancer.
July 27, 2016 Death, Cannibalism, & Speciation - Microbes passed from generation to generation cause all male babies of an African butterfly to die, influencing evolution.
July 26, 2016 3D Genome - How our DNA’s shape is key to its function.
June 28, 2016 Aging Monkeys - How do other primates’ social lives change as they age?