{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"Not Just Because - Biology","title":"Survival of the Fittest: How Living Things Change Over Generations","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/34e737d7\"></iframe>","width":"100%","height":180,"duration":869,"description":"\"Survival of the fittest\" doesn't mean the strongest or fastest always win — it means the living things whose traits best fit their environment are more likely to survive and have offspring. Over many generations, small inherited differences can add up to big changes in a population, from the color of a moth's wings to the shape of a finch's beak.","thumbnail_url":"https://img.transistorcdn.com/GWGpYNx2EidL76pvhi9LCMHN9g9kbhCqvzFXLs9Qk4w/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS8yODNj/OWIwYzY0MDlkNGQ1/MzdmM2I4N2JhZjMy/Mzk4OC5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}