All 8 Biogeographical Realms (Animals/Geography)

The distribution of the world’s fauna can be broken down into 8 areas known as Biogeographical Realms. Each of these realms is separated for various reasons and contains unique wildlife that has been evolving separately for millions of years. In this video, we’ll delve into each realm and explore the geographical features and biodiversity found therein.

More rabbit holes to dive into!

00:57 Antarctic Realm
03:06 Nearctic Realm
06:17 Neotropical Realm
09:21 Afrotropical Realm
12:16 Palearctic Realm
15:14 Indomalayan Realm
18:22 Australasian Realm
21:29 Oceania Realm

Media & Attribution

Music
All of the music used in this video is available at Epidemic Sound. If you need music and would like to support the channel, please find a referral link below.

Sources & Further Reading
Listed below are the sources used to create the video.

An Update of Wallace’s Zoogeographic Regions of the World
Biome Maps traced from NASA
Biogeography Definition
Info on Individual Species
Overview of Realms
Most biodiverse countries
Antarctica Topography
Antarctica Temperature
Orca diet
Moose Diet
Freshwater Fish of America
Greater prairie chicken
Great Basin Reptiles
The hottest place on earth
Mississippi River Fish
Insects of the prairie
Fish of the Amazon
Bull Sharks in the Amazon
The Pantanal
Heaviest snake in the world
The Atacama
The Great American Biotic Interchange
Largest African Elephant
Elephant evolution
Congo fish
Bird of paradise flower
Animals of the Kalahari
Animals of the Taiga
Gobi Desert

Full Source List (there were too many for the character limit so I've included a link to a Google Doc with the full source list for this video)

About Textbook Travel:
Videos Exploring The Animal Kingdom & The Natural World

Educational content about the most fascinating elements of our planet and the study surrounding them. Current content includes:

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#textbooktravel #animals #biodiversity

[Textbooktravel]

Hi everyone! Just a quick note to say that this video is based on the zoogeographical regions mapped by Alfred Russel Wallace in 1876. I realised halfway through creating this that there was a 2013 study by Holt et al. which identified a further 3 realms. I've posted the link to this study in the sources section of the description along with an article I found where you can see a map of the new realms. Thanks for watching! Uploads will be more regular from now on, aiming for every 2 weeks. Next up... Marsupials!

[sampagano]

One big error I noticed, the steppe eagle would definitely not have fed on guinea pigs, since caviaformes are all south American. The wild species domestic guinea pigs are descended from are also still extant.

[bIeaq]

"where it preys upon mice-like rodents, such as mice"
such a funny line

[sampagano]

I like that caiman have both one of the largest reptiles on earth, but also Cuvier's dwarf caiman, the absolute smallest crocodilian.

[SadaEKE]

- Mice like rodents like mice.

That is one hell of a writing. :D

[rhettC]

This is literally the perfect channel for me, geography and biology combined is just amazing.

[carlacristinadas.almeida]

Loved learning about the Wallace line! Fascinating how it impacted evolution on both sides!

[omnibussy]

you consistently have the most wholesome, entertaining taste in stock images and video of the animals ❤️

[jyiiehoobaclayon]

0:58 Antarctica
3:08 Neartic
6:18 Neotropical
9:22 Afrotropical
12:18 Palearctic
15:15 Indo-Malayan
18:23 Australasian
21:30 Oceanian

[sampagano]

Disappointed you didn't bring up my absolute favorite Australasian and Oceanian species, the emerald tree skink, which is one of the most widespread and beautiful lizards in the region. But it is a big subject. Hopefully you do a video on skinks in the future since all skinks are delightful.

[mrguy]

Thank you for including both measuring systems for the temperatures and distances!

[cheyennepepper]

“That preys on mice-like rodents. Such as mice” you are so underrated I swear 😂😂😭

[CNCiscool]

I’m still confused about the different crocodilians. Having recently discovered gharials at the zoo, my understanding has shattered. Maybe you could make a video about them!

[k_dubs]

Honestly one for the most entertaining channels I've come across on YouTube. And with the amount of different topics about nature you'll never run out of content keep it up.

[jacobrobinson]

At 5:15, coyotes were referred to as ‘prairie wolves’ and I just wanted to say there actually was a subspecies of wolf called the prairie wolf that was hunted to extinction in the 1870s.

[teteufumacinha]

This is a very good video, but... at 14:47 it's said that the steppe eagle (most likely) used to hunt guinea pigs. This is very confusing, since guinea pigs: 1- are (and were always) an entirely domesticated species and 2- originally came from the montane guinea pig (Cavia tschudii) from the Andes mountain range, in South America. They couldn't be the main source of food for Aquila nipalensis, who are instead opportunistic pretadors, only specializing in ground squirrels during breeding.

[Jess-I-Guess]

These are such enjoyable and relaxing videos to watch, I'm always excited to see a new upload! Plus, seeing you respond to people commenting on little mistakes in a positive way is refreshing! There's so much uncertainty on these topics and little facts found in some places may be claimed as false in others, so it's great to see your dedication to trying to provide the most accurate information you can.
But I'll enjoy watching it either way!

[chez]

"The world's smallest carnivore, the east weasel, feeds on mouse- like fauna, such as mice" idk why but that cracked me up

[russianhomecat]

This channel is underestimated! One of the best wild life content on YouTube! 😻😽👏

[pijn]

Yes, I really needed this today! Biogographical realms are a pretty fascinating topic to cover, so Im glad you did!