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Lagomorpha
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=== Differences between lagomorphs and other mammals === Lagomorphs and [[rodent]]s form the [[clade]] or grandorder [[Glires]]. Despite the evolutionary relationship between lagomorphs and rodents, the two orders have some major differences. Lagomorphs have four [[incisor]]s in the upper jaw (smaller peg teeth behind larger incisors), whereas rodents only have two. They are similar to rodents in that their incisors grow continuously, thus necessitating constant chewing on fibrous food to prevent the teeth from growing too long.<ref>{{cite journal |author1=Best, T. L. |author2=Henry, T. H. |date=1994-06-02 |title=''Lepus arcticus'' |journal=[[Mammalian Species]] |pages=1β9 |issn=0076-3519 |jstor=3504088 |issue=457 |doi=10.2307/3504088 |s2cid=253989268}}</ref><ref name=Britannialagomorph/> In addition, all lagomorph teeth grow continuously,<ref name="ADW Lago">{{cite web|url=https://animaldiversity.org/accounts/Lagomorpha/|website=Animal Diversity (ADW)|title=Lagomorpha; hares, pikas, and rabbits|access-date=2024-01-03|last=Myers |first=Phil}}</ref> while for most rodents, only the incisors grow continuously.<ref name="ADW tooth">{{cite web|url=https://animaldiversity.org/collections/mammal_anatomy/tooth_structure/|website=Animal Diversity (ADW)|title=Structure and placement of individual teeth|access-date=2024-01-03}}</ref> Lagomorph and rodent incisors are structured differently. Lagomorphs have more cheek teeth than rodents. Both have a large [[diastema]]. Lagomorphs are almost strictly [[herbivorous]], unlike rodents, many of which will eat both meat and vegetable matter. Lagomorphs have no [[paw]] pads; instead, the bottoms of their paws are entirely covered with fur,<ref>{{Cite web|title=Pika; mammal|url=https://www.britannica.com/animal/pika|access-date=2021-06-26|website=Encyclopedia Britannica|language=en}}</ref><ref>{{Cite book |last=Macdonald |first=David W. (David Whyte) |url=http://archive.org/details/encyclopediaofma00mals_0 |title=The Encyclopedia of mammals |date=1984 |publisher=New York, NY : Facts on File |others=Internet Archive |isbn=978-0-87196-871-5}}</ref> a trait they share with [[Red panda|red pandas]].<ref>{{Cite book |last=Fisher |first=Rebecca E. |title=Red Panda: Biology and Conservation of the First Panda |publisher=Academic Press |year=2021 |isbn=978-0-12-823753-3 |editor-last=Glatston |editor-first=Angela R. |edition=2nd |location=London |pages=81β93 |chapter=Red Panda Anatomy |doi=10.1016/B978-0-12-823753-3.00030-2|s2cid=243824295}}</ref> Similar to the rodents, [[bat]]s, and some mammalian [[insectivore]]s, they have a [[Gyrification|smooth-surfaced cerebrum]].<ref name=Ferrer1986>{{cite journal |author1=Ferrer, I. |author2=Fabregues, I. |author3=Condom, E. |year=1986 |title=A Golgi study of the sixth layer of the cerebral cortex I: The lissencephalic brain of Rodentia, Lagomorpha, Chiroptera, and Insectivora |journal=[[Journal of Anatomy]] |volume=145 |url=http://europepmc.org/articles/PMC1166506/pdf/janat00188-0215.pdf |archive-url=https://web.archive.org/web/20210511153250/http://europepmc.org/articles/PMC1166506/pdf/janat00188-0215.pdf |archive-date=2021-05-11 |url-status=live |pages=217β234 |pmc=1166506 |pmid=3429306}}{{request quotation |date=July 2017 |reason= I didn't see anything about gross structure in the paper, only stuff about fine structure. The PDF of the paper doesn't allow text searching, however, so I may have missed it.}}</ref> Lagomorphs are unusual among terrestrial mammals in that the females are larger than males.<ref>{{cite journal |last1=Ralls |first1=Katherine |title=Mammals in Which Females are Larger Than Males |journal=[[The Quarterly Review of Biology]] |date=June 1976 |volume=51 |issue=2 |pages=245β276 |doi=10.1086/409310 |pmid=785524 |s2cid=25927323}}</ref>
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