These animals have evolved to only need one pair of limbs, whether arms or legs. Any other limbs have not only become vestigial but have disappeared altogether.
Subcategories
This category has the following 2 subcategories, out of 2 total.
C
S
- Sirenoidea (11 P)
Pages in category "Animals with only two limbs"
The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes.