FIRST UP!! #1 seed RED KANGAROO (Osphranter rufus) vs wild card winner SOUTHERN RED-BACKED VOLE (Myodes gapperi) #RedInFur #2021MMM
Red Kangaroos are the largest living marsupial, weighing in at up to 90kg & 1.8m tall when standing. Male red kangaroos are much larger than females, up to twice the size. Males are also reddish in color, while the females are bluish-grey (Freedman et al. 2020) #2021MMM
The hop of O. rufus averages 1m when the animal is moving slowly, but is lengthened with speed, up to 3–4 m. At short bursts, it can reach speeds of 40km/hr!! (Freedman et al 2020) #2021MMM
At first glance, Southern Red-backed Voles (SRB Vole) may be confused w/ a mouse, but compared to mice their ears are smol & hidden by fur, plus their tails are tiny little nubbins (Merritt 1981) #PerfectTail #2021MMM
Unlike kangaroos which are herbivores, voles are omnivorous & have a diverse diet of grasses, seeds, berries, roots, fungi & arthropods (Merritt 1981) Pic: @inaturalist #CARNAGE #2021MMM
Tonight's battle takes place on Charles Darwin Reserve in Western Australia co-managed by @BushHeritageAus & traditional owners the Badimaya people. bushheritage.org.au/places-we-prot… #2021MMM
In 2015, I had the good fortunte to visit the Charles Darwin Reserve and contribute to a study of bats as part of the @BushHeritageAus & @ConservationWA Climate Change Observatory Project bushheritage.org.au/newsletters/20… #2021MMM
Charles Darwin Reserve lies north-east of Perth, on the northern edge of the Western Australian wheat belt. It provides habitat for at least 230 animal & 680 plant species, including RED KANGAROOS Pic: Dale Fuller #2021MMM
SRB Vole finds itself in a habitat that is unfamiliar... it is dry, SO DRY, and dusty. This isn't the woodland Kawawachikamach, a Naskapi/Iyiyiw First Nations Reserve on the Taiga Shield. (Souto-Lima & Millien 2014) Pic: NYT #2021MMM
It is dusk, prime foraging time! Our vole finds itself smack dab in the middle of a kangaroo mob grazing on drying autumn grass. It starts to nibble on a seed when suddenly, it's soaking wet. Could it be sweet, refreshing rain?! #2021MMM [gif: man asking how is it dry & wet]
That's not rain! It's spit from a huge, hungry, slobbering Red Kangaroo #Yuck #2021MMM
SRB Vole scans for something to climb & finds a nearby Acacia cerastes (a rare, wiry wattle) shrub to escape the downpour (Morris 2009) #2021MMM
RED KANGAROO DEFEATS SOUTHERN RED-BACKED VOLE!!!! #2021MMM

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More from @TCastanea

12 Mar
NEXT UP: #2 seed RED WOLF versus #15 seed GIANT GOLDEN MOLE, co-written by @EvolEmpiricist @StoneLab_ASU & ME!! #2021MMM A reddish and dark grey wol...Prepared specimen of a Gian...
Giant Golden Moles are ~20 cm long & up to 539 grams (4x the size of other golden moles!). They vary in color, outer fur can be slate, dark brown, reddish or yellow-ish buff (Poduschka 1980) #2021MMM Drawing of golden mole but ...
Giant golden moles share some of the same bones as other animals but THEY HAVE 3 FOREARM BONES & WE HAVE 2! Skeletal similarities can be used to evaluate species relatedness & last common ancestor (Seiffert 2007) #2021MMM ck12.org/section/eviden… Figure showing how forearm ...
Read 17 tweets
17 Mar 20
FIRST UP: #2 SEED FLORIDA PANTHER (PUMA CONCOLOR CORYI) VERSUS AMPHIBIAN CHYTRID FUNGUS (BATRACHOCHYTRIUM DENDROBATIDIS) Photos: @FWS & Rob O’ Sullivan #2020MMM ImageImage
Whether you call it a panther, puma, cougar, or mountain lion - Puma concolor means lion-of-one-color. Panthers are shades of tan, coryi subsp. is darker brown to rust & kittens are gray w/ dark brown/blackish spots & five bands around the tail. fws.gov/refuge/florida… #2020MMM Image
Mountain lions are one of the most widespread felids in the Americas. Rangewide @IUCN ranks them as Least Concern but the coryi subspecies has been listed by @USFWS as an endangered species since 1967. fws.gov/refuge/florida… #2020MMM Image
Read 18 tweets
13 Mar 20
NEXT UP: No. 1 seed Pygmy Hog (Porcula salvania) vs No. 16 seed Southern Ningaui (Ningaui yvonneae) #2020MMM ImageImage
Pygmy Hogs have blackish-brown fur shaded w/ rusty red that is longer at the nape of the neck. Weighing in at 3.7kg, males are larger than females. (Mallinson 1971) indiabiodiversity.org/species/show/2… #2020MMM Image
Pygmy Hogs once occurred in tall, wet grasslands throughout the Terai Arc (Oliver 1985) but now only occur in Manas & Rajiv Gandhi Orang National Parks, northwest Assam, India just north of the Brahmaputra River, the 9th largest river in the world #2020MMM researchgate.net/publication/25… ImageImage
Read 13 tweets
26 Mar 19
NEXT UP: # 4 SEED FISHER VERSUS # 5 SEED TIGER OWL #2019MMM photo credits: Tom Kogut
Tiger owls are generally "free from natural enemies" predators such as coyotes, bobcats, mountain lions & are known to attack humans who get too close to their nests (Baumgartner 1939) #TheyWillCutYou #2019MMM
Males & females tiger owls mature by year 3 & females are larger. They produce 1-6 eggs/season & alternate roosting & hunting during the nesting season. Males do most of the hunting while females spend their time protecting the brood. (Baumgarter 1939) #2019MMM
Read 24 tweets
19 Mar 19
NEXT UP: # 4 SEED FISHER (Pekania pennanti) VERSUS # 13 SEED TIGER SALAMANDER (Ambystoma tigrinum) (photo: Paul Bannick @ConservationNW) #2019MMM Fisher (Pekania pennanti) photo: Paul BannickTiger salamander (Ambystoma tigrinum)
Both of our combatants are widespread throughout North America with overlapping ranges. Fishers inhabit forests with large trees, snags & logs for resting & denning, while tiger salamanders occur in forests, grasslands & marshy areas with soil suitable for burrowing #2019MMM
The fisher is not a cat & is not known to fish. #MammalOfTwoLies Fisher comes from the Dutch words fisse/visse & French words fiche/fichet, aka the European polecat. When hunting, small mammals are their primary prey but they will also omnomnom on birds (Powell 1981). #2019MMM
Read 18 tweets
15 Mar 19
NEXT UP: #8 seed Flat-headed Cat (Prionailurus planiceps) versus #9 seed Water Chevrotain (Hyemoschus aquaticus) aka mouse deer #2019MMM
Flat-headed cat occurs throughout the southern Malay Peninsula, Sumatra, & Borneo in low tropical forests (including oil palm plantations). They also occur in riparian habitats. animaldiversity.org/accounts/Prion… #2019MMM
Flat-headed cats are small, about the size of a domestic cat (1.5-2.75 kg), with a short stubby tail. Flat-headed cats can't retract their claws (neither can fishing cats or cheetahs!) (Sunquist & Sunquist 2002) #2019MMM
Read 17 tweets

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