NEXT UP: No.5 seed Red Brocket (Mazama americana) vs No. 12 seed Siberian Weasel (Mustela sibirica) #2021MMM
GET THIS: Red Brocket is RED! This South American deer species is reddish-brown in coloration across most of its body, perfect for camouflage in dense, tropical forests #2021MMM
Red Brockets are the biggest of the Mazama cervids. Our male Red Brocket is ~4.3 stoats long (145 cm) & he's dense weighing in at 30 kg (136 stoats) #StoatsAsMeasurement #2021MMM
Compared to other deer species in the Americas, Red Brockets are small. But this "smaller" size is beneficial for manuerving in tropical forests & foraging for fruits (INCLUDING FIGS #FigGate), seeds, & other plant-based foods (Bodmer 1991…) #2021MMM
Siberian Weasel is also Red, In Fur. This lovely mustelid is found across eastern Asia (especially Siberia, hence the scientific name "sibirica") & has a gorgeous yellowish-red coat that it dons in the winter #2021MMM
Our Siberian Weasel is a bit bigger than your average stoat (Stoats & Siberian Weasels are both #MightyMustelids): ~1.76 stoats (60 cm) in length & weighing in at 820 g (3.7 stoats) #StoatsAsMeasurement #2021MMM
#MightyMustelid Siberian Weasel is a ferocious predator! Similar to other carnivorans, Siberian Weasels have impressive #Carnassials… (spin that skull & have a look!) (@Chris_J_Law 2018;…) #2021MMM
Tonight's battle takes place on Red Brocket's home turf: the Reserva Natural Vale in the Atlantic Forest of Brazil. It's a balmy 75 degrees F & Siberian Weasel is toasty warm in his reddish-yellow winter coat ideal for a Siberian winter #2021MMM
In Siberia, Siberian Weasel would be actively hunting & caching food stores all winter (they do not hibernate). His elongate body size & high metabolic rate requires that he eats often #2021MMM
Siberian Weasel bounds loudly through the leaf litter in search of food, preferably a rodent or a bird (Tatara & Doi 1994…) [video is Siberian Weasels moving around in an enclosure] #2021MMM
Red Brocket is quietly grazing, always on the alert for potential predators (especially felid predators like jaguars & pumas; De Bitetti et al. 2008…) [video is a Red Brocket foraging & being alert] #2021MMM
The bounding Siberian Weasel startles the Red Brocket who freezes in place [gif is a deer staring at headlights] #2021MMM
Siberian Weasel bounds again & lands right in front of Red Brocket! Red Brocket leaps up & emits a sneezelike snort in alarm & lands...... #2021MMM
.....right back in the same spot where he started #2021MMM
Siberian Weasel blinks unalarmingly at Red Brocket & Red Brocket freezes again #2021MMM
Given the temperature rise & his relatively tiny size, S. Weasel is wise to recognize his energy would be wasted on futile exercise... #2021MMM
Siberian Weasel bounds past our statuesque Red Brocket, leaving the playing field in search of a nutritious & energy-packed #TastyMorsel #2021MMM

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More from @je_light

12 Mar
FIRST UP: No.1 seed Dugong (Dugong dugon) vs No. 16 seed Colo Colo Opossum (Dromiciops gliroides). Genetics tweets for this battle provided by the awesome @sexchrlab #2021MMM Picture of a dugong on the ...
Dugongs are found in tropical, marine waters of the eastern hemisphere oceans. These large mammals (3m long, 300kg) never come out of the water; they are obligate, aquatic specialists #2021MMM Map of range of the dugong ...
Dugongs are 1 of 2 living genera within the order Sirenia. The other living genus is Trichechus, or Manatees (a #2019MMM combatant!). Tricksy taxonomy: what in the world are Sirenians? Where do they belong in the mammal phylogenetic tree? #2021MMM
Read 16 tweets
13 Mar 20
LAST UP: No. 8 seed Finlayson's Squirrel (Callosciurus finlaysonii) vs No. 9 seed Kowari (Dasyuroides byrnei) #2020MMM
Finlayson's Squirrel is our 3rd #TeamRodent of the night. These "beautiful squirrels" (but aren't they all??) are quite lovely with highly variable coat colors ranging from all white to all black to all red (Boonkhaw et al. 2017 #2020MMM
In fact, Callosciurus is Greek for beautiful ('callo'), shadow ('skia'), & tail ('oura') (Borror 1960 Finlayson's Squirrel are #smol squirrels (1.3 stoats #StoatsAsMeasurements), found in the trees (arboreal) in southeast Asia rainforests #2020MMM
Read 18 tweets
12 Mar 20
FIRST UP: No.1 seed Sloth Bear (Melursus ursinus) vs No. 16 seed & wildcard winner Pygmy Spotted Skunk (Spilogale pygmaea) #2020MMM
Our #TeamDogsish Pygmy Spotted Skunk is a #smol skunk, blackish-brown in color w/creamy-buff longitudinal stripes over most of the body. The genus name Spilogale is derived from the Greek "spilos" (spot) and "gale" (weasel) (Kinlaw 1995 #2020MMM
The Pygmy Spotted Skunk is @IUCNRedList vulnerable due to rapid human encroachment on their Pacific Mexican habitat, hunting, & predation by CATS AND DOGS! #IntraOrderCarnage… #2020MMM
Read 13 tweets
26 Mar 19
NEXT UP: #1 Plains Zebra (Equus quagga) & Yellow-Billed Oxpecker (Buphagus africanus) vs #8 seed Aardvark (Orycteropus afer) & Aardvark Cucumber (Cucumis humifructus) #2019MMM
In Round 1, Oxpecker (& Zebra) picked off the Batfly (& Gammaproteobacteria). Aardvark & Cucurbit advanced against #Tripletrouble monkeys in an epic #BeastieBoys Battle #2019MMM
Why do Zebras have stripes? Scientists had thought these stripes were anti-predator devices, making it difficult for predators to cue in on 1 individual among the herd (called disruptive coloration) #2019MMM
Read 23 tweets
22 Mar 19
NEXT UP: #5 seed Beaver (Rodentia: Castor canadensis) vs #13 seed Rakali (Rodentia: Hydromys chrysogaster). It's #TeamRodent vs #TeamRodent! #2019MMM
In Waterfalls Round 1, Beaver tail slap sent Mink circuitously for a muskrat meal. A poacher's gunshot took out Peccary & Rakali advanced #2019MMM
Beavers influence entire ecosystems, even in the face of wildfires. #ActualLivingScientist @EmilyFairfax reveals how busy Beavers engineer an ecosystem: #2019MMM
Read 19 tweets
20 Mar 19
NEXT UP: #7 seed Capybara & Wattled Jacana vs #10 seed Fork-tailed Drongos & Sociable Weavers #2019MMM
We all know that things like to sit on Capybaras (Rodentia: Hydrochoerus hydrochaeris) aka R.O.U.S. (rodents of unusual size #PrincessBride): What's so special about Wattled Jacanas (Charadriiformes: Jacana jacana) sitting on Capybaras? #2019MMM
Wattled Jacanas are one of several bird species known to "clean" Capybaras, removing ectoparasites such as ticks & leeches & then ingesting them… #2019MMM
Read 19 tweets

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