Dipodomyinae

Dipodomyinae is a subfamily of heteromyid rodents, the kangaroo rats and mice. Dipodomyines, as implied by both their common and scientific names, are bipedal; they also jump exceptionally well. Kangaroo rats and mice are native to desert and semidesert ecosystems of western North America from southern Canada to central Mexico. They are generally herbivorous foragers, and dig and live in burrows.

Dipodomyinae
Temporal range: Late Miocene – Recent
Kangaroo rat
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Heteromyidae
Subfamily: Dipodomyinae
Gervais, 1853
Genera

Taxonomy

Dipodomyinae is the sister group of a Perognathinae-Heteromyinae clade; the two are estimated to have split about 22-24 million years (Ma) ago. The most recent common ancestor of extant dipodomyines is thought to have lived 15-16 Ma ago, when the two genera split. The most recent common ancestors of extant members of Dipodomys and Microdipodops are thought to have lived 10-11 and 7-8 Ma ago, respectively.[1]

gollark: Then, you just move it a little bit toward lower loss (gradient descent).
gollark: You have a big thing of settable parameters determining how you go from input to output. And if you know what the result *should* be (on training data), then as the maths is all "differentiable", you can differentiate it and get the gradient of loss wrt. all the parameters.
gollark: Well, you put your data into something something linear algebra and something something gradient descent, and answers come out.
gollark: I see. This might be one of the ones which can't boot from those, or you just beeized slightly.
gollark: That's one of the boot errors.

References
  1. Hafner, J. C.; Light, J. E.; Hafner, D. J.; Hafner, M. S.; Reddington, E.; Rogers, D. S.; Riddle, B. R. (2007-10-18). "Basal Clades and Molecular Systematics of Heteromyid Rodents". Journal of Mammalogy. 88 (5): 1129–1145. doi:10.1644/06-MAMM-A-413R1.1.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.