Uploaded August 2023 | Updated September 2026, 2 weeks ago
Perucetus colossus is the new giant of paleontology. The enormous basilosaurid whale had some of the most dense bones of any mammal, and its close relation to the giant predator Basilosaurus allows for skeletal scaling. Perucetus weighed between 85 and 340 metric tonnes, making it potentially the largest animal known to science. Perucetus was not only the size of a blue whale, but it may have been even bigger than a blue whale. It may also have been carnivorous, which would make it the largest predator in Earth's history.
Disclaimer: This video only addresses the original Bianucci et al. 2023 study, not any third-party responses or extra reconstructions made in response to the paper. Those will be addressed in a separate video.
Bianucci et al 2023: A heavyweight early whale pushes the boundaries of vertebrate morphology. nature.com/articles/s41586-023-06381-1
Article summary: nature.com/articles/d41586-023-02408-9.epdf?no_publisher_access=1&r3_referer=nature
Fair use allows individuals to use a copyrighted work without obtaining permission when the use is considered commentary, criticism, teaching, news reporting, scholarship, or research. (The Saltiel Law Group)
Perucetus colossus is the new giant of paleontology. The enormous basilosaurid whale had some of the most dense bones of any mammal, and its close relation to the giant predator Basilosaurus allows for skeletal scaling. Perucetus weighed between 85 and 340 metric tonnes, making it potentially the largest animal known to science. Perucetus was not only the size of a blue whale, but it may have been even bigger than a blue whale. It may also have been carnivorous, which would make it the largest predator in Earth's history.
Disclaimer: This video only addresses the original Bianucci et al. 2023 study, not any third-party responses or extra reconstructions made in response to the paper. Those will be addressed in a separate video.
Bianucci et al 2023: A heavyweight early whale pushes the boundaries of vertebrate morphology. nature.com/articles/s41586-023-06381-1
Article summary: nature.com/articles/d41586-023-02408-9.epdf?no_publisher_access=1&r3_referer=nature
Fair use allows individuals to use a copyrighted work without obtaining permission when the use is considered commentary, criticism, teaching, news reporting, scholarship, or research. (The Saltiel Law Group)


![Acrocanthosaurus Appreciation Day
Acrocanthosaurus atokensis is a gigantic carcharodontosaurid theropod from the Early Cretaceous of North America. It was nearly as big as famous giants like Mapusaurus and Giganotosaurus, but is underrated in paleontology culture. Lets explore what makes Acrocanthosaurus such an awesome dinosaur.
Fair use principles in U.S. copyright laws support the implementation of copyrighted material with educational, parodic, or transformative intent. The usage of any copyrighted material in this video is for noncommercial educational purposes, and is asserted permissible under the aforementioned copyright rulings.
Acrocanthosaurus art sources
https://www.deviantart.com/franoys/art/Giant-predatory-dinosaurs-comparison-616409616
https://www.deviantart.com/highdarktemplar/art/Acrocanthosaurus-atokensis-513380108
https://www.deviantart.com/paleocolour/art/Acrocanthosaurus-atokensis-582244717
https://www.deviantart.com/paleoguy/art/Acrocanthosaurus-with-Tenontosaurus-594282699
https://fineartamerica.com/featured/acrocanthosaurus-julius-csotonyi.html?product=art-print
https://www.deviantart.com/manuelsaurus/art/Acrocanthosaurus-626426008
https://www.ebay.com/itm/Latest-Dinosaurs-Acrocanthosaurus-Tenontosaurus-carcass-model-12-Free-Shipping-/263469895675
https://www.pinterest.com/pin/737464507704070456/?lp=true
https://www.worldwildlife.org/species/elephant
http://planetdi.startlogic.com/club/large_carnivores/acrocanthosaurus.htm
http://www.bhigr.com/store/product.php?productid=64
https://www.deviantart.com/highdarktemplar/art/Acrocanthosaurus-atokensis-513380108
Senter, Phil; Robins, James H. (2005). Range of motion in the forelimb of the theropod dinosaur Acrocanthosaurus atokensis, and implications for predatory behaviour. Journal of Zoology. 266 (3): 307–318. doi:10.1017/S0952836905006989.
DEmic, Michael D.; Melstrom, Keegan M.; Eddy, Drew R. (2012). Paleobiology and geographic range of the large-bodied Cretaceous theropod dinosaur Acrocanthosaurus atokensis. Palaeogeography, Palaeoclimatology, Palaeoecology. 333–334: 13–23. doi:10.1016/j.palaeo.2012.03.003.
Franzosa, Jonathan; Rowe, Timothy. (2005). Cranial endocast of the Cretaceous theropod dinosaur Acrocanthosaurus atokensis. Journal of Vertebrate Paleontology. 25 (4): 859–864. doi:10.1671/0272-4634(2005)025[0859:CEOTCT]2.0.CO;2.
https://www.researchgate.net/figure/Digital-endocranial-endocast-of-the-braincase-of_fig32_50892373 Acrocanthosaurus Appreciation Day](https://i.ytimg.com/vi/NMFn-vL03vg/mqdefault.jpg)







