Congo
congo
buffalo
a red-eyed vireo is a bird that ends in "o"
It begins and ends in Africa
antelope
to.....
Buffalo is not really an antelope, but it is the closest relative to the antelope where the name ends with an o.
Amoeba
· echo
mosquito
Avocado
An Italian company name that begins with "R" and ends with "o" is Roncato.