Jessica Light Profile picture
Mar 15, 2018 17 tweets 8 min read Twitter logo Read on Twitter
NEXT UP: 6th seed Jaguarundi (Puma yagouaroundi) vs 11th seed Desman (Galemys pyrenaicus) #2018MMM
Wait, a who and a what? You know...jaguarundi...a New World cat that looks sort of like like a big weasel #2018MMM
Jaguarundi great adaptations include: long & slender body w/short legs, variable coat color, diurnal activity, habitat generalist, &, as a member of the Carnivora, #carnassials #2018MMM
The geographic distribution of the jaguarundi is believed to get as far north as the southern United States (Arizona & Texas). However, populations in North & Central America are at risk, with jaguarundis believed to be extinct in the United States #2018MMM
Desmans are aquatic insectivores. Great adaptations are associated with its aquatic nature: elongated head, body, & tail, strong & webbed hindfeet for swimming, waterproof fur, the ability to close both ears & nostrils with valves to keep water out, & snorkel-like nose #2018MMM
Cool fun fact: desmans may use echolocation for orientation & prey detection #2018MMM
Like jaguarundis, desmans also are at risk with populations declining across its European range due to habitat loss #2018MMM
Although jaguarundis & desmans belong to separate orders (Carnivora & Soricomorpha/Eulipotyphla, respectively), both are in the superorder Laurasiatheria & last shared a common ancestor in the Cretaceous ~89 mya #notsodifferent #2018MMM
Our battle tonight takes place this evening in the Atlantic Rainforest of Brazil, where jaguarundis are known to prey upon a variety of vertebrate taxa, including small mammals… #2018MMM
Even though it is in completely the wrong hemisphere, the desman is not too far outside of its comfort zone (although it is a little warm). Our desman easily finds some fastish-moving water & begins to hunt for aquatic insects & crustaceans #2018MMM
Meanwhile, our jaguarundi has woken up & is looking for a midnight snack #2018MMM
Weighing in at 4.5-9 kg (a minimum of ~20 stoats), the jaguarundi far outweighs the desman (35-80 g). And the desman falls nicely within the size range of jaguarundi prey #stoatsasmeasurement #2018MMM
Hearing splashing, our jaguarundi quietly goes to investigate & spies the desman in the water. With its tiny eyes & poor eyesight, the desman is unaware of any potential danger (easy prey, perhaps??) #2018MMM
But, desmans are known to be territorial, defending their territories to the death against intruders #2018MMM
Rather, desmans *WERE* known to be territorial. Recent research does not support territorial behavior in desmans… &… #2018MMM
The jaguarundi pounces. Splashing ensues. Tails flip in & out of the water. A red tint pools to the water's surface #2018MMM

• • •

Missing some Tweet in this thread? You can try to force a refresh

Keep Current with Jessica Light

Jessica Light Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!


Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @je_light

Apr 3, 2018
UP FIRST TONIGHT: everyone's favorite river horse, the 1-seeded PYGMY HIPPO Hexaprotodon (formally Choeropsis) liberiensis, vs. the scrappy 4-seeded brush wolf, COYOTE Canis latrans! #2018MMM
Many minds came together to bring you tonight's first battle, so a quick hat-tip to @AnneWHilborn, @PKurnath, @TCastanea, & @tinkeringprim8. Seriously, the #teamwork has been amazing #Monstars #2018MMM
To reach the #FinalRoar, Hippo crushed star-nosed mole, intimidated both maned rat & Tasmanian devil, & STOMPED the cheetah out of competition #hangryhippo #2018MMM
Read 36 tweets
Mar 29, 2018
UP NEXT: #3 seed Berlin Boar (Sus scrofa) vs #7 seed Porcupine (Erethizon dorsatum) #2018MMM
The top-ranked competitor still has homefield advantage, so this Urban Jungle battle takes place in Berlin, Germany. Berlin Board & Porcupine don't have a lot in common; they last shared a common ancestor ~96 mya ( #2018MMM
Did you know what "Porcupine" is Latin for "Quill Pig"? Follow #ActualLivingScientist @porcupinedoc for some more amazing porcupine facts #2018MMM
Read 18 tweets
Mar 27, 2018
First up in Kat's Away division, Orinoco Crocodile (#1 seed) vs Goliath Tarantula (#9 seed) #2018MMM
This battle was written by the fabulous @c_n_anderson, & it's a doozy. Buckle up folks #2018MMM
The critically endangered Orinoco crocodile defeated the praying mantis in R1 and faces another arthropod tonight.… #2018MMM
Read 17 tweets
Mar 23, 2018
NEXT UP: #3 Crabeater Seal Vs. #6 Jaguarundi!!! #2018MMM
This battle was written by @Drew_Lab. Josh is in the UK right now & he was at Darwin's House today. How cool was that? #2018MMM
The Crabeater Seal skated into R2 after lightly munching on the surprisingly aptly named Edible Dormouse, while the Jaguarundi defeated the Desman #2018MMM
Read 21 tweets
Mar 22, 2018
NEXT UP: 8th seeded Bothrops asper (Terciopelo or Lancehead) vs. 9th seeded Theraphosa blondi (Goliath Tarantula or Goliath Bird-Eating Tarantula) #2018MMM
AKA, THE GREAT VENOM BATTLE OF 2018!! We've seen a lot of venom tonight. Who's ready for more?? #2018MMM
First, a brief review of venomous vs poisonous. Both competitors in this match-up are venomous #2018MMM
Read 21 tweets
Mar 20, 2018
NEXT UP: 7th seeded Porcupine (Erethizon dorsatum) vs 10th seeded Delhi Rhesus (aka, Rhesus Monkey or Rhesus Macaque; Macaca mulatta) #2018MMM
Erethizon dorsatum are the 2nd largest rodents in North America (1st place goes to beavers), weighing anywhere between 5-14 kg (23-64 stoats #stoatsasmeasurement) #2018MMM
When we think porcupines, we think quills, right? Quills & spines have evolved multiple, independent times across the mammal tree of life as a defense strategy & are excellent examples of convergent #evolution (see the hedgehog battle) (…) #2018MMM
Read 22 tweets

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!


0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy


3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us on Twitter!