Cross shaped bone from a large tegu's pectoral girdle. Queequeg for scale.
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Third day of Mammal Week is all about Rodents!
There are a total of 17 different Rodents across the British Isles and we have less than half of that.
Here there is
Grey Squirrel
Brown Rat
Bank Vole
Field Vole
Wood Mouse
House Mouse
Theres also Red Squirrel, Eurasian Beaver, Hazel Dormouse, Water Vole, Harvest Mouse and Yellow Necked Mouse, all of which are native. On top of that theres also some Island subspecies, the Skomer, Guernsey and Orkney Voles. Skomer being a subspecies of the Bank Vole and the latter of the Common Vole. Not forgetting the Edible Dormouse and the Black Rat both of which have been introduced.
So out of our list theres two species which have been introduced. The Brown Rat and of course the Grey Squirrel, the Brown Rat came in from Asia and the Grey Squirrel is native to North America. The Grey Squirrel however is classed as an Invasive Species.
Both of these species are adaptable, agile and unfortunately are known for spreading disease. Notably the Grey Squirrel having a huge effect on Red Squirrel populations who have no immunity to pox. In addition thier aggressive behaviour (amongst other complications) forced Reds into a select few locations, entirely absent from Southern England Mainland.
But now lets talk about teeth!
Teeth are the easiest way to seperate the last 4 species. Mice have cusped molars and Voles have molars that continuously grow. Then to seperate that further the distinction between Wood and House Mice is the notch in the back of the incisors of the House Mouse which the Wood lacks. In Voles its a little more complicated, sometimes its notable by the length of row of teeth, sometimes even the shape of the teeth pattern as seen from the underside but the distinction between Field and Bank Voles is the second molar the Bank Vole has a paired root and the Field Vole have a single open root on the 2nd upper molar!
24/04/24
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Enormous rabbit squad. Average sized rabbit for scale. Flemish giant, giant angora, and English lop.
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Basket of Coffin Bones
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Ouch. Coyote foreleg with healing injury
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First up for Mammal Week are Insectivors!
I have very few of these but heres 3 Ive acquired over time.
European Hedgehog
European Mole
Common Shrew
Theres are also Pygmy and Water Shrews and out on the Isles of Scilly and Jersey lie the Lesser Whited Toothed Shrew. The Greater Whited Toothed Shrew usually found on Guernsey and other Channel Isles apparently turned up in Sunderland of all places after being caught by a Cat!
The Hedgehog is a rapidly declining resident leading to a Red Listed status. However our love for these nighttime visitors has actually seen a rise in population numbers in Urban settings so keep up the hard work. Hedgehogs will also foam at the mouth, this is to self anoint coating this onto thier spines its thought to provide a new smell as a potential predator deterrent but researchers arent exactly sure
The same cant be said for the rarely seen Mole who have no legal protection. Historically used for fur and culled for garden interference they spend their time underground. The fur doesnt grow in a set direction and its thought to aid with manoeuvring around a common myth is they dont have eyes, they do, albeit basic.
Common Shrews on the other hand dont stick around too long. Thats because they need to eat almost 90% of its body weight a day to survive, feasting on insects theyre always on the hunt. So its no wonder that despite them being Britain's second most numerous mammal you dont find em all too often.
22/04/24
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Juvenile feral hog skulls. Cutie pies!
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Domestic Horse (Male Shire) with a nasal injury due to a halter. This particular individual was PTS due to lack of quality of life (Was rescued, then unfortunately pts), from Leicestershire, UK.
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Skull Stack Attack, mixed media sculpture by Chris Haas
This artist on Instagram
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Fetal goat! Oxidized skeleton.
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Tiniest baby Sulcata Tortoise skull.
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A twisty bobcat that will get a bit more degreasing.
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Monroe Street Bridge Spokane, Washington - July 2008
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