Prehistoric Caiman vs Terror Bird: Fossil Reveals Brutal Encounter

A terror bird leg bone has been discovered with deadly bite marks inflicted by a prehistoric caiman, hinting at a brutal prehistoric conflict between two top predators. Also in the news this week: a bizarre new species of ancient reptile with a striking crest along its back has been found, a study has proven that simply seeing sick people can trigger the brain to start a rapid immune response, and much more! 📦 Get the curiosity box here!: http://curiositybox.com/BenGThomas ✏ Use our code for 25% off the first box: 25ben 🎲 Every new annual subscriber receives a FREE Denary Dice Set! ⭐ Support us on Patreon for 7DoS and Ben G Thomas behind-the-scenes, bloopers, extra adventures and more! Join our Patreon:   / bengthomas   📰 Subscribe for the latest science news every Wednesday! Intro music by Matt D Holloway: https://goo.gl/9wX4ht Cool Vibes - Film Noire by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ 📱 Social Media: ►Instagram:   / 7daysofscience   ►TikTok:   / bengthomas   📜 Credits: Presented by Ben G Thomas Written by Ben Thomas, Douglas James and Nicky Thomas 7 Days of Science is produced by Douglas James and Ben Thomas 7 Days of Science logo, graphics and more have been designed by Michael Buhler Sources: Evidence of a caiman (possibly Purussaurus) attack on a Terror Bird: https://royalsocietypublishing.org/do... https://www.iflscience.com/terror-bir... (Previous evidence of a Purussaurus attack on a ground sloth: https://royalsocietypublishing.org/do...) A new bizarre Triassic reptile Mirasaura grauvogeli with a distinctive crest: https://www.nature.com/articles/s4158... Mixed-species dinosaur herd trackways discovered in Canada: https://journals.plos.org/plosone/art... How sleep schedule relates to diseases: https://spj.science.org/doi/10.34133/... The sight of sick people triggers an immune response: https://www.nature.com/articles/s4159... https://www.nature.com/articles/d4158... The potential of ionising radiation-induced radiolysis for microbial life on other planets and moons: https://www.cambridge.org/core/journa... Humpback whale migration: https://phys.org/news/2025-07-humpbac... https://www.nature.com/articles/s4159... Chapters: 0:00 - Intro 0:47 - Evidence of a caiman (possibly Purussaurus) attack on a Terror Bird 2:44 - A new bizarre Triassic reptile 4:11 - Mixed-species dinosaur herd trackways discovered in Canada 5:28 - How sleep schedule relates to diseases 6:39 - The sight of sick people triggers an immune response 7:52 - The potential for microbial life on other planets and moons 8:59 - Humpback whale migration patterns are changing 10:14 - Unboxing the Summer Curiosity Box! 21:09 - Outro