# Was ist die Wallace-Linie?

In the island world of Southeast Asia, the animal worlds seem strangely separated. How did that happen? In the 19th century, the naturalist Alfred Russel Wallace had a theory.

- Kind: Short
- Year: 2021
- Runtime: 1 min
- By: ZDF/Terra X/Tobias Schultes/WENDEVARGA/Nikolai Holzach/Jochen Schmidt
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Was_ist_die_Wallace-Linie%3F.webm)
- Licence or status: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0) (as the archive states it)
- Credit: ZDF/Terra X/Tobias Schultes/WENDEVARGA/Nikolai Holzach/Jochen Schmidt
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/106566445?play=1)