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The fisher (Pekania pennanti) is a carnivorous mammal native to North America, a forest-dwelling creature whose range covers much of the boreal forest in Canada to the northern United States. It is a member of the mustelid family, and is the only living member of the genus Pekania. It is sometimes referred to as a fisher cat, although it is not ...
The fisher was for many years placed in the genus Martes. A 2008 study using DNA sequences found the remaining species of Martes to be more closely related to the wolverine (genus Gulo) than to the fisher, rendering Martes paraphyletic. Therefore, the fisher was reclassified in the separate genus Pekania. [2]
Mustelidae is a subfamily in Musteloidia, a superfamily of mammals that is united by shared skull and teeth characteristics. Mustelids are believed to have separated from their next closest related family, Procyonidae, around 29 million years ago. [ 17 ]
Fishers have a reputation as killers of household pets such as cats and small dogs. While able, they prefer small rodents, rabbits and squirrels.
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A fisher, a mammal related to river otters and weasels, found as roadkill in Ashtabula County in 2023, was recently confirmed to be pregnant, according to the Ohio Department of Natural Resources ...
From there carnivorans have split into two clades based on the composition of the bony structures that surround the middle ear of the skull, the cat-like feliforms and the dog-like caniforms. [35] In feliforms, the auditory bullae are double-chambered, composed of two bones joined by a septum .
Feliformia skull showing double-chambered bullae All extant feliforms share a common attribute: their auditory bullae (bony capsules enclosing the middle and inner ear ). [ 8 ] This is a key diagnostic in classifying species as feliform versus caniform.