New findings strongly suggest that COVID-19 may negatively affect sperm quality and reduce fertility in men, according to research published in the Journal Reproduction. The study indicates that COVID-19 infection can cause increased sperm cell death, inflammation, and oxidative stress, resulting in lower sperm quality and potentially reducing fertility. ------------------- General Motors, in partnership with Navistar, says it will focus on fuel cells for long haul trucks. According to reports, they will include a tie-in with a company called OneH2 to produce hydrogen and control the storage, delivery, and designing systems. ------------------ Apparently, Apple quietly added a new iMessage security feature in iOS 14 called BlastDoor. BlastDoor is a new sandbox inside iMessage that receives and sanitizes all iMessage content before it’s shown to the user. ----------------- The term "3D printing" can refer to a variety of processes in which material is deposited, joined, or solidified under computer control to create a three-dimensional object, with the material being added together (such as liquids or powder grains being fused together), typically layer by layer. ----------------- Today we are discussing teeth. Our ancestors had much bigger jaws than we do, which helped them chew a tough diet of roots, nuts, and leaves. And what meat they ate, they tore apart with their teeth, all of which led to worn-down chompers that needed replacing. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Cancer Removal Today is Thursday, February 4, 2021. At the top of our news, a new laser system to aid in cancer treatment will help surgeons remove cells without damaging healthy tissue. Scientists proved in the lab that the laser system could remove cancer cells in a way that does not damage the surrounding, healthy cells. Those healthy cells were within the width of a human hair..... Xenobots An African clawed frog, in biology, it is known as Xenopus laevis. This frog typically lives in sub-Saharan Africa's streams and ponds, scavenging for food that it rips apart with its feet. In January, researchers at the University of Vermont and Tufts University published a report that gave the amphibian a different lot in life. They harvested its embryonic skin and heart cells and reassembled the living matter into robotic devices — transforming Xenopus into xenobot. Xenobots are the first robots made entirely of living materials.... Doomsday Glacier If Thwaites melts away, that much-larger ice block will add water to our oceans as well, further driving up sea level rise. If and when this might happen, however, is what researchers are trying to learn. Scientists know that Thwaites Glacier is very important, but still, how much and how fast sea levels increase into the decades and centuries is still uncertain.... Blue Eyes I’ve heard that the blue waters near ocean glaciers are beautiful to behold. The same could be said about blue eyes. New research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation that took place 6-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today.... NASA's Perseverance NASA's Mars 2020 Perseverance rover mission is just 22 days from landing on the surface of Mars. The spacecraft has about 25.6 million miles remaining in its 292.5-million-mile journey and is currently closing that distance at 1.6 miles per second.... Human Evolution When we think of human evolution, our minds wander back to the millions of years it took natural selection to produce modern-day man. Recent research suggests that humans continue to evolve.... --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] This is the Season 1 finale. This show contains recording bloopers at the end so this episode is listed as adult content because of foul language. Our week's hot topics are safe for all listeners and we notify you when the bloopers will begin. We will be back for Season 2 on January 24th --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support

Give us feedback: [email protected] We discuss this week's hot science topics. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support