Uploaded November 2025 | Updated September 2026, 2 weeks ago
Prehistoric animals sometimes had pretty rough lives. From headless marine reptiles to Smilodon skulls pierced by other sabre-toothed cats, let's take a look at five of the most painful-looking injuries found preserved in fossils!
Get The Secret Lives of Dinosaurs: https://cup.columbia.edu/book/the-secret-lives-of-dinosaurs/9780231211307/
Order from Amazon: amazon.com/Secret-Lives-Dinosaurs-Unearthing-Prehistoric/dp/0231211309
Dr Dean Lomax's website: deanrlomax.co.uk
Dr Dean Lomax's Instagram: instagram.com/dean_r_lomax/?hl=en
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Bob Nicholls' Instagram: instagram.com/bobnicholls.art/?hl=en
Bob Nicholls' Facebook page: facebook.com/BobNichollsArt
Please do leave a review of The Secret Lives of Dinosaurs if you've read it!
The book is officially endorsed by Slash of Guns N' Roses!!
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Sources:
Headless Tanystropheus:
cell.com/current-biology/fulltext/S0960-9822(23)00475-X
cell.com/current-biology/fulltext/S0960-9822(20)31017-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982220310174%3Fshowall%3Dtrue
https://riviste.unimi.it/index.php/RIPS/article/view/9541/9030
peerj.com/articles/10299
Smilodon populator bite marks:
sciencedirect.com/science/article/pii/S1631068319300612
sciencedirect.com/science/article/abs/pii/S1616504710001424
bioone.org/journals/the-southwestern-naturalist/volume-52/issue-1/0038-4909(2007)52[161:IKAMLP]2.0.CO;2/INTRASPECIFIC-KILLING-AMONG-MOUNTAIN-LIONS-span-classgenus-speciesPUMA-CONCOLORspan/10.1894/0038-4909(2007)52[161:IKAMLP]2.0.CO;2.short
A tailless Massospondylus from South Africa:
tandfonline.com/doi/abs/10.1080/02724634.2012.710691
jstor.org/stable/23361084
nature.com/articles/s41598-020-77052-8
Injured Dilophosaurus arms:
journals.plos.org/plosone/article?id=10.1371/journal.pone.0149140
palaeo-electronica.org/content/2019/2559-dilophosaurus-forelimbs
Mosasaur aggression:
bioone.org/journals/transactions-of-the-kansas-academy-of-science/volume-111/issue-3/0022-8443-111.3.251/A-bitten-skull-of-Tylosaurus-kansasensis-Squamata--Mosasauridae-and/10.1660/0022-8443-111.3.251.short
jstor.org/stable/pdf/20476366.pdf
livescience.com/56666-mosasaur-tooth-stuck-in-sea-monster-face.html
sciencedirect.com/science/article/pii/S0195667119304082
https://doc.rero.ch/record/16193/files/PAL_E3402.pdf
science.org/content/article/ancient-sea-monster-battle-revealed-unusual-fossil
0:00 - Intro
2:06 - Headless Tanystropheus fossils
7:23 - Smilodon skulls with sabre bites
10:38 - Dinosaur with its tail ripped off
13:57 - Battered Dilophosaurus
17:12 - Mosasaur vs Mosasaur
20:50 - The Secret Lives of Dinosaurs!
Prehistoric animals sometimes had pretty rough lives. From headless marine reptiles to Smilodon skulls pierced by other sabre-toothed cats, let's take a look at five of the most painful-looking injuries found preserved in fossils!
Get The Secret Lives of Dinosaurs: https://cup.columbia.edu/book/the-secret-lives-of-dinosaurs/9780231211307/
Order from Amazon: amazon.com/Secret-Lives-Dinosaurs-Unearthing-Prehistoric/dp/0231211309
Dr Dean Lomax's website: deanrlomax.co.uk
Dr Dean Lomax's Instagram: instagram.com/dean_r_lomax/?hl=en
Dr Dean Lomax's Facebook page: facebook.com/Dean.R.Lomax
Bob Nicholls' Instagram: instagram.com/bobnicholls.art/?hl=en
Bob Nicholls' Facebook page: facebook.com/BobNichollsArt
Please do leave a review of The Secret Lives of Dinosaurs if you've read it!
The book is officially endorsed by Slash of Guns N' Roses!!
Subscribe to 7 Days of Science: youtube.com/@7DaysofScience
Become a Channel Member or support us on Patreon for behind-the-scenes, bloopers, extra adventures and more!
Become a Member: youtube.com/channel/UCDSzwZqgtJEnUzacq3ddoOQ/join
Join our Patreon: patreon.com/7daysofscience
Join our Discord server: discord.gg/jTsGYtRBHZ
Follow us on Instagram: bit.ly/1PIEagv
Follow us on TikTok: tiktok.com/@bengthomas
Music by Geographer
Subscribe to explore the wonderful life around you!
Social Media:
►Instagram: bit.ly/1PIEagv
►TikTok: tiktok.com/@bengthomas
►Twitter: twitter.com/BenGThomas42
►Subreddit: reddit.com/r/BenGThomas
Sources:
Headless Tanystropheus:
cell.com/current-biology/fulltext/S0960-9822(23)00475-X
cell.com/current-biology/fulltext/S0960-9822(20)31017-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982220310174%3Fshowall%3Dtrue
https://riviste.unimi.it/index.php/RIPS/article/view/9541/9030
peerj.com/articles/10299
Smilodon populator bite marks:
sciencedirect.com/science/article/pii/S1631068319300612
sciencedirect.com/science/article/abs/pii/S1616504710001424
bioone.org/journals/the-southwestern-naturalist/volume-52/issue-1/0038-4909(2007)52[161:IKAMLP]2.0.CO;2/INTRASPECIFIC-KILLING-AMONG-MOUNTAIN-LIONS-span-classgenus-speciesPUMA-CONCOLORspan/10.1894/0038-4909(2007)52[161:IKAMLP]2.0.CO;2.short
A tailless Massospondylus from South Africa:
tandfonline.com/doi/abs/10.1080/02724634.2012.710691
jstor.org/stable/23361084
nature.com/articles/s41598-020-77052-8
Injured Dilophosaurus arms:
journals.plos.org/plosone/article?id=10.1371/journal.pone.0149140
palaeo-electronica.org/content/2019/2559-dilophosaurus-forelimbs
Mosasaur aggression:
bioone.org/journals/transactions-of-the-kansas-academy-of-science/volume-111/issue-3/0022-8443-111.3.251/A-bitten-skull-of-Tylosaurus-kansasensis-Squamata--Mosasauridae-and/10.1660/0022-8443-111.3.251.short
jstor.org/stable/pdf/20476366.pdf
livescience.com/56666-mosasaur-tooth-stuck-in-sea-monster-face.html
sciencedirect.com/science/article/pii/S0195667119304082
https://doc.rero.ch/record/16193/files/PAL_E3402.pdf
science.org/content/article/ancient-sea-monster-battle-revealed-unusual-fossil
0:00 - Intro
2:06 - Headless Tanystropheus fossils
7:23 - Smilodon skulls with sabre bites
10:38 - Dinosaur with its tail ripped off
13:57 - Battered Dilophosaurus
17:12 - Mosasaur vs Mosasaur
20:50 - The Secret Lives of Dinosaurs!
