<h2>Artiodactyla</h2>

<p>
The even-toed ungulates (order Artiodactyla) are ungulates (hoofed animals) whose weight is borne approximately equally 
by the third and fourth toes, rather than mostly or entirely by the third as in odd-toed ungulates (perissodactyls), such as horses.
</p>

<p>
The name Artiodactyla comes from (Greek: ἄρτιος (ártios), "even", and δάκτυλος (dáktylos), "finger/toe"), so the 
name "even-toed" is a translation of the description. This group includes pigs, peccaries, hippopotamuses, camels, llamas, 
chevrotains (mouse deer), deer, giraffes, pronghorn, antelopes, goat-antelopes (which include sheep, goats and others), and cattle. 
The group excludes whales (Cetacea), although DNA sequence data indicate they share a common ancestor, making the 
group paraphyletic. The phylogenetically accurate group is called Cetartiodactyla (from Cetacea + Artiodactyla).
</p>

<p>
Of the roughly 220 artiodactyl species, many are of great dietary, economic, and cultural importance to humans.
</p>

<p>
A further distinguishing feature of the group is the shape of the astragalus (talus), a bone in the 
ankle joint, which has a double-pulley structure. This gives the foot greater flexibility.
</p>