A squirrel scurries past as cherry blossom flowers bloom beautifully.

いつもなかなか静止してくれないのだけれど、今日は桜の花に群がっていました
#wildlife #squirrel #mammal #wildlifephotos #animalsky

春のリスたちの様子
A squirrel is munching on the honey from cherry blossom flowers.
#wildlife #squirrel #mammal #wildlifevideo #animalsky

Simulated microgravity alters sperm navigation, fertilization and embryo development in mammals Space exploration continues to inspire scientific advancement, with a renewed focus on long-term missions and planetary settlements. NASA’s ARTEMIS program aims to return humans to the Moon by 2029, while SpaceX anticipates its first crewed Mars missions by 20301,2,3,4. As humanity moves toward permanent off-Earth habitation, understanding how extraterrestrial conditions affect reproduction is essential for crew health and the sustainability of life beyond Earth. Extraterrestrial environments are characterized by altered gravity, increased radiation, and extreme climates. Earth’s gravity is 1×g, compared with 0.377×g on Mars, 0.166×g on the Moon, and near-zero in the vacuum of space5, with these reduced gravity conditions known as microgravity. Gravity has played a fundamental role in the evolution of life, with cells relying on mechanosensing to convert physical forces into biochemical signals6. Studies of astronauts returning from the international space station (ISS) have shown impacts of a reduced gravity environment on several key physiological systems, including a fluid shift to reduce circulating blood volume, increased muscular atrophy and a 1-2% bone loss every month, increasing ataxia, postural disturbances and fatigue and a reduction in the differentiation and polarisation of immune cells7,8,9,10. Reproductive function is similarly gravity sensitive. Microgravity has been shown to impair mouse embryonic...

Simulated microgravity alters sperm navigation, fertilization and embryo development in mammals
->Nature | More on "Microgravity effects on mammalian reproduction" at BigEarthData.ai | #Mammal

An extreme close-up focuses on the face and paws of a small, furry mammal with thick grey and tan fur. The animal has a large, dark, reflective eye and long, thin whiskers, with its delicate paws held up to its mouth as if it is eating. The shallow depth of field captures the fine texture of the fur and a subtle reflection of the surrounding trees within its eye.

The world in a squirrels eyes.

#SquirrelSaturday #Mammal #Rodent #citycritter #queensync #nature #naturephotography #wildlife #wildlifephotography #photography #forestpark

A male African lion (Panthera leo) laying majestically on the grass just behind the flat rock in the foreground. He is facing the left of frame with the wind blowing in his mane.

Happy #caturday
Male African #lion - Panthera leo
(Shot at @cincinnatizoo.bsky.social 2-21-26) 🦁🐱🦊 #photography #animal #mammal #cat #bigcat #zoo #cincyzoopic

An eastern gray squirrel (Sciurus carolinensis) perched at the top of a dead tree that appears to be hollowed out as the squirrel’s rear disappears into the tree and then the tail shoots back out on the right side of the frame opposite their head in profile facing the left of frame

Happy #squirrelsaturday
Eastern gray #squirrel - Sciurus carolinensis
(Shot near Cincinnati 2-16-26) 🐿️🦊 #photography #wildlifephotography #wildlife #nature #animal #mammal #rodent

A squirrel with a fluffy orange tail, sits on a dried branch propped in the corner of 2 cinder block walls.

#Mammal #Rodent #SquirrelSaturday This Red Squirrel was inspecting my 'drying rack' in the corner of my carport. Little so-and-so keeps finding ways to launch itself onto the bird feeders. Last week I caught it 'flying' off of my roof, to land on a suet holder. The battle wages on.

Photo taken on June 22, 2019 with my NIKON D5200 using the Nikkor 50mm f/1.8D lens. Find more information at https://gommadigitale.com/photo/22-06-2019/622

#photo #dog #mammal #Vertebrate #dogBreed #Canidae #Carnivore #snout - https://gommadigitale.com/photo/22-06-2019/622

For #SquirrelSaturday, a Grey Squirrel eating a peanut! #mammal #squirrel #photography #ECK #WestCoastKin #PhotographersUnited

💋YCH REMINDERS

🔗All info here:
www.furaffinity.net/gallery/mixe...

🌞Consider follow me on:
www.furaffinity.net/user/mixedba...

#YCH #OC #SFW #NSFW #Commission #furry #anthro #fenale #girl #hybrid #lineart #dragon #specie #mammal #reptile #mature #fur #boobs #body #draw #furryartist

A fox squirrel, with tan and brown fur, is sitting up on its hind legs and looking towards the camera. The squirrel is on a carpet of green grass.

Squirrel sitting on the grass and wondering “Who is that strange man with a camera?” LA Arboretum, Arcadia, California, USA. April, 2024. OM Systems OM-1 + M.Zuiko 40-150 F2.8 PRO + MC14. #laarboretum #squirrels #mammal #animals #nature #naturephotography #amateurphotography #photography

A pair of baby raccoons on the upper branches of a tree. One appears to be almost lying down on its branch and the other is upright behind it, clinging to the tree. They are grey with black paws and a black mask across the eyes. There is a white line above the eyes and white around the nose and mouth.

Baby raccoons. #Raccoon #ProcyonLotor #Kit #Mammal #Animal #Nature #Photography #PotawatomiStatePark #SturgeonBay #Wisconsin

A global-scale assessment of zoonotic virus diversity and spillover potential in urban-adapted mammal species Magle, S. B., Hunt, V. M., Vernon, M. & Crooks, K. R. Urban wildlife research: past, present, and future. Biol. Conserv. 155, 23–32 (2012). Santini, L. et al. One strategy does not fit all: determinants of urban adaptation in mammals. Ecol. Lett. 22, 365–376 (2019). Ma, D. et al. Global expansion of human–wildlife overlap in the 21st century. Sci. Adv. 10, eadp7706 (2024). Jones, K. E. et al. Global trends in emerging infectious diseases. Nature 451, 990–993 (2008). Olival, K. J. et al. Host and viral traits predict zoonotic spillover from mammals. Nature 546, 646–650 (2017). Plowright, R. K. et al. Land use-induced spillover: a call to action to safeguard environmental, animal, and human health. Lancet Planet. Health 5, e237–e245 (2021). Betke, B. A., Gottdenker, N. L., Meyers, L. A. & Becker, D. J. Ecological and evolutionary characteristics of anthropogenic roosting ability in bats of the world. iScience 27, 110369 (2024). Ecke, F. et al. Population fluctuations and synanthropy explain transmission risk in rodent-borne zoonoses. Nat. Commun. 13, 7532 (2022). Xiao, X., Newman, C., Buesching, C. D., Macdonald, D. W. & Zhou, Z.-M. Animal sales from Wuhan wet markets immediately prior to the COVID-19 pandemic. Sci. Rep. 11, 11898 (2021)...

A global-scale assessment of zoonotic virus diversity and spillover potential in urban-adapted mammal species
->Nature | More on "Zoonotic spillover in urban wildlife" at BigEarthData.ai | #Zoonotic #Mammal #Species #Virus #Biodiversity #BirdFlu #Spillover

Phone would not use a flash. I don’t know why.

This was much larger than rats I’ve seen before but had a tail like a rat. I propose this is a muskrat (Ondatra zibethicus).
The only real issue is: wtf was it doing in my front yard at 10pm?
Context: this is within 100 feet approximately of a large freshwater lake.
#animalid
#mammal

Head shot of a Snowshoe Hare in dappled light. It is facing right and it's black whiskers show up against it's white pelt. The ears are brown, it's eye dark brown and, nose beige.

#Mammal #Lepus #Hare #WhiskersWednesday The whiskers on a Snowshoe Hare. This is a shot from Feb 2024 because we got a BIG dump of snow last night. It also blew hard, so with the drifts, it will take a couple of days to clean up.

Limitations of serial cloning in mammals We began serial cloning experiments (Fig. 1a) in January 2005. The success rate of re-cloned mice gradually increased as generations progressed (up to 15.5% in the 26th-generation), and NGS analysis showed no difference between first-generation clones and 25th-generation re-clones. Therefore, we initially believed that serial cloning could probably continue indefinitely28, and thus continued this experiment. To maintain consistent experimental conditions as much as possible, TW and SW always participated in the production of next generation re-cloned mice. Approximately 3-4 generations of re-cloned mice were produced each year. However, the cloning success rate gradually decreased with each successive generation (Fig. 1b). Although success rates varied between generations, the average success rate declined to 0.6% after 57 rounds of serial cloning, and all 58th-generation re-cloned mice died the next day. In total, more than 1200 cloned mice were produced from a single original donor mouse (Supplementary Table 1). The original donor mouse was female with an agouti coat color; therefore, all cloned mice were female and exhibited the same coat color as the donor. Whole-genome sequencing (WGS) analysis also confirmed that these clones originated from the donor mouse (see later). Placenta and lifespan of re-cloned mice All cloned mice have been found...

Limitations of serial cloning in mammals
->Nature | More on "Serial cloning mammal generation limits" at BigEarthData.ai | #Mammal

COW Check out the COW package from PROTOFACTOR, INC to speed up your game development process. You can find this and other Mammal options by cliking the link.

#Field #Barn #Farm #Mountains #Plains #Prey #Mammal #Fur #Realistic #Animal

This guy came trotting right up to me on my stroll this evening #ukwildlife #mammal

The photo shows a polar bear claw coming up out of a pool and resting on the wall of the pool. Behind the pool is another wall. The claw is white and wet with long black claws

Bear claw. #BearClaw #PolarBear #UrsusMaritimus #Bear #Mammal #Animal #Nature #Photography #Claw #Pool #Zoo #HenryVilasZoo #Madison #Wisconsin

I spent a lovely couple of hours watching water voles yesterday - such gorgeous little mammals. #watervoles #endangered #mammal #wildlife #nature #wildlifephotography #Yorkshire #RSPB @tessmachling.bsky.social @macrolunchtimes.bsky.social @rspb.bsky.social @mammalsociety.bsky.social

Argentina updates national IUCN mammal list with new focus on non-native species Scientists have updated the conservation status of hundreds of mammals in Argentina, adding previously unassessed species and revising biodiversity threat levels. The assessment evaluated 417 native mammal species across the country, identifying national threats even in species that are listed as least concern. More than 500 scientists contributed to the effort, which also involved a new way of measuring the impact of non-native mammals. “Some species are more at risk of disappearing than others, either because they’re more exposed or because their biology and ecology make them more affected by certain [factors],” Javier Pereira, general coordinator of the 2025 Categorization of the Mammals of Argentina, told Mongabay. “We need to measure that in order to have an indication of which species are more at risk than others.” The Argentine Society for the Study of Mammals (SAREM), a national collective of scientists, conducts periodic assessments of the conservation status of mammal species in Argentina. Its goal is to better understand population trends and threats across the country’s many ecosystems. Species expert teams review available scientific literature, monitoring data and field observations from the previous five years and then assign conservation statuses, which are then reviewed and formally validated by a committee...

Argentina updates national IUCN mammal list with new focus on non-native species
->Mongabay | More on "Argentina mammal conservation status update" at BigEarthData.ai | #Nature #Iucn #Species #Biodiversity #Mammal

Squiggle the Squirrel looking buff today. #squirrel #mammal #ukwildlife #nature

#cow #goat #bovine #cervine #ungulate #hooved #mix #animal #mammal #originalcharacter #anthro #anthropomorphic #quad #quadruped #quadrupedal #fullbody #artwork #drawing #digital #meme #sfw #flowers

A fuzzy squirrel in profile, clutches a frozen apple as it bites into it. The nails of it's paw are trying to hold the pinkish red apple in place as it bites.

#Mammal #Rodent #ColourADay #PinkMon A Red Squirrel found a frozen apple to munch on.

#sienna #fursona #dog #canine #animal #mammal #originalcharacter #artwork #drawing #digital #bust #portrait #blood #quad #quadruped #quadrupedal

A bongo (Tragelaphus eurycerus) on the left is putting their nose in the air and antlers to their back in relaxation as another bongo on the right shoves their nose into the other’s neck as part of their grooming

A bongo (Tragelaphus eurycerus) on the left is putting their nose in the air and antlers to their back in relaxation as another bongo on the right shoves their mouth into the other’s neck as part of their grooming

The bongo (Tragelaphus eurycerus) on the right appears to have become aware of the watching photographer as they have ceased grooming to look directly at the camera. The bongo on the left remains in a state of relaxation, seemingly unaware that the grooming has paused

Happy Sunday
#Bongos - Tragelaphus eurycerus
(Shot at @cincinnatizoo.bsky.social 2-21-26) 🦌🦊 #photography #animal #mammal #ungulate #antelope #bongo #zoo #cincyzoopic

Sunday book review: The Ascent of Mammals by John Reilly
Publisher: @pelagic.bsky.social
Review: markavery.info/2026/03/22/s...

'very clear & interesting explanation of a complicated & technical story'

@mammalsociety.bsky.social @zslscience.bsky.social @mammalbiology.bsky.social #mammal #bat #rat

Easter Specail!!

#easter #easterbunny #bunnygirl #rabbit #rodent #mammal #animal #furry #anthro #offer #specialoffer #commission #commissionsopen #sale #kantoart

#beaver #nature #wildlife #beavers #beavers #natural #spring #wild #animal #nature #water #mammal #trapping #naturephotography #refuge #wildlife #Minnesota #mn #nature #naturephotography #naturelovers #landscape #beautiful #travelphotography #wildlife #adventure #explore #sky #bhfyp #hiking #beauty

If you include me, this would be Rat, Man & Robin. #ukwildlife #mammal #robin #nature