Before you go any further...
I've read and accept the Terms of Use and the Privacy Policy.
I accept to receive newsletter and other communications associated with firms of The Explorers Network group'
I accept to receive commercial offers of The Explorers Network partners'.
Thanks!
Vote everyday for your favorite content
SENSITIVE CONTENT
This media contains sensitive content which some people may find disturbing or offensive.
You must be 15 years of age or older to view sensitive content.
Log inBirthday
Content being validated
THE EXPLORERS +
Watch our premium movies
The Explorers + is our premium movie catalog in Ultra High Definition (HD/4K/8K)! Hundreds of videos already available and daily new content on all your devices (web, mobile, tablets, smart TV).
Post content (photo or video) and get 1-month free
OR
Subscribe and support The Explorers Foundation's field actions for biodiversity.
Content being validated
The giraffe can't yawn
6
0
It the only terrestrial vertebrate who doesn't have this faculty. The giraffe, emblematic mammal of the African savannah, cannot yawn. The main hypothesis put forward to explain this inaptitude is the absence of biological rhythm in the giraffe. The latter has a very choppy sleep and sleeps on average only two hours a day!
Photo credit: Ben Thouard / The Explorers
Related content
Médias en cours d’exploration