In the rodent family tree, deer mice separated from the ancestors of house mice and rats about 25 million years ago. By some ...

Researchers have identified a key neural switch that controls whether animals instinctively flee from a threat or freeze in ...

Researchers have identified a neural switch in the brain’s dorsal periaqueductal gray that determines whether mice flee or ...

A new study reveals how evolution fine-tunes instinctive fear responses by tweaking a key neural switch deep in the brain.

Object Details Collector F. M. Greenwell Record Last Modified 9 Aug 2021 Specimen Count 1 Collection Date 21 Aug 1974 Other Numbers Mammals Field Number : 1683 USNM Number 506707 Preparation Skin ...

In forest mice, a single loom sparked a volley in dPAG neurons that paralleled running speed. Open field cousins showed only a muted dPAG murmur even when their feet finally flew, meaning the ...

Nonreproducing Peromyscus maniculatus acclimated to 23° C and a standard mouse food can maintain a positive energy balance at-10° C. Their maximum cold-induced rate of energy assimilation is about 90 ...

The field metabolic rates (FMRs) of deer mice (Peromyscus maniculatus) were studied at low (1,230 m) and high (3,800 m) altitudes by means of the doubly labeled water (DLW) technique. Maximal rate of ...

But in an apparent response to climate change, species are migrating, including the white-footed mouse (Peromyscus leucopus) that is moving northward into territory long occupied by the woodland deer ...

Object Details Collector C. A. Blount Record Last Modified 4 Nov 2020 Specimen Count 1 Collection Date 11 Sep 1978 Accession Number 333405 Other Numbers Mammals Field Number : CAB-976 USNM Number ...