So Nice They Named It Twice: Gorilla and Bison

I have a fascination with scientific names that have an identical (or nearly identical) genus and species epithet. So nice they named it twice! Here are somebrief introductions to some of these plants and animals. If you know of any more, feel free to include them in the comments and I will add them to my list.

Gorilla gorilla

Cross River gorilla, Limbe Wildlife Centre, Cameroon. Photo by Arend de Haas (CC BY-SA 3.0)

Gorilla gorilla is commonly known as the Western gorilla and is divided into 2 subspecies: western lowland gorillas and Cross River gorillas. They are critically endangered great apes endemic to western Africa. After chimpanzees and bonobos, gorillas are humans’ closest relatives. Unfortunately human activities including poaching, commercial logging, and civil wars are primarily to blame for the gorillas’ decline.

Gorillas live in groups of up to 20 individuals, with a dominant silverback male as well as several females and their offspring. Despite their immense size and fearsome teeth, their diet consists mainly of plant matter and invertebrates.

Bison bison

American bison. (Photos by Eadweard Muybridge, animation by Waugsberg)

There are only 2 living species of bison: the American bison (Bison bison) and the European bison (B. bonasus). Despite commonly being referred to as ‘buffalo’, bison are distantly related to buffalo. However, bison are very closely related to cattle and are sometimes bred and called ‘beefalo’. As recently as the Ice Age there were other species of bison (with very impressive horns) wandering the plains of North America and into Central Asia and Western Europe (B. antiquusB. latifronsB. occidentalisand B. priscus).

Until relatively recently, bison roamed across much of North America: from the Appalachian Mountains to eastern Oregon and from northern Mexico to Alaska. Unfortunately, as settlers spread across what would become the United States they took advantage of this abundant source of meat (as anyone who has played Oregon Trail knows). Today bison are restricted to isolated patches in the Rocky Mountains of the United States and Canada.

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5 thoughts on “So Nice They Named It Twice: Gorilla and Bison

  1. Otherwise known as “tautonyms,” I used to collect them and only know one that’s a three-peat (with subspecies): Gorilla gorilla gorilla. But, there are Meles meles, Bufo bufo, Gulo gulo, Mola mola (my favourite–the pacific sunfish), and Vulpes vulpes, off the top of my head.

    • Thanks! I have a list of almost 300 tautonyms that I’m slowly adding to and I appreciate crowd-sourcing! Hopefully I’ll be able to get some more on here soon.

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