Leopard Seal (Hydrurga leptonyx), Tierra Del Fuego, Chile 2025.

Leopard Seals, an apex predator of the Southern Ocean, can reach 4 meters in length and have been known to kill divers (though they are generally more inquisitive than aggressive around people). And they were my fourth most wanted mammal in the world.

We were in the middle of nowhere - over 300km to the nearest gas station or store - and in the middle of some of the most spectacular scenery I have ever seen. All ice-capped mountains and 50 meter high glaciers creaking and groaning as they calved into the water.

#mammalwatching #mammals #sealsofinstagram #pinnipeds ...

Pen-tailed treeshrew (Ptilocercus lowii), Sumatra, 2025

There are many species of treeshrews in Asia, but the Pen - or Feather - tailed is the only nocturnal treeshrew and so different to the others that it is in a taxonomic family of its own. The species is thought to be the most ancient and primitive of all the treeshrews.

Generally hard to find across their range, they are relatively common in Way Kambas National Park. This was the first mammal I saw when I drove into the park last month.

#mammalwatching #mammals #landmammals #wildlife#wildlifephotography #naturephotography #wildlifeplanet#wildplanet #discoverwildlife #naturegeography#wildgeography #ourplanetdaily #bbcwildlifepotd #Indonesiaamammalwatching #treeshrew ...

Western Tarsier (Cephalopachus bancanus), Sabah, Borneo 2025

I was delighted to see this a tarsier in Sabah last month, as it is a species that has eluded me on my previous trips. A great piece of spotting by @ky_guy12 to find this little bloke.

These small nocturnal primates occur in many parts of Borneo but are often hard to find, perhaps because they shy away from bright lights to protect their sensitive eyes that are designed to operate in darkness. Full trip report up on mammalwatching.com
#mammalwatching #mammals #landmammals #wildlife#wildlifephotography #naturephotography #wildlifeplanet#wildplanet #discoverwildlife #naturegeography#wildgeography #ourplanetdaily #bbcwildlifepotd #primatesofinstagram #primate #tarsier #borneowildlife ...

Sunda Colugo (Galeopterus variegatus), Singapore 2025

Sunda Colugos are found across much of south-east Asia, with a second closely related species living in the Philippines. Colugos are abundant in some of Singapore’s parks.

These peculiar nocturnal and arboreal mammals are thought to eat mainly leaves and sap. They are the mammalian embodiment of a stunt kite, using the gliding membrane between their legs to float from tree to tree sometimes for well over 100 metres with great maneuverability. They are also called flying lemurs: a terrible name because they don’t fly and aren’t lemurs. I prefer colugo. Admittedly I don’t know what ‘colugo’ means but suspect it translates to ‘seriously bloody weird’ in someone’s language.

#mammalwatching #mammals #landmammals #wildlife#wildlifephotography #naturephotography #wildlifeplanet#wildplanet #discoverwildlife #naturegeography#wildgeography #ourplanetdaily #bbcwildlifepotd #flyinglemur #singaporenature

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Eastern Forest Hedgehog (Mesechinus orientalis), Qingliangfeng National Nature Reserve, Zhejiang, China, 2025

This small hedgehog, which weighs about as much as a can of soda, was only discovered in 2023. But they do not appear uncommon in the right habitat. Last week we found two along the road in the hill forests of the Qingliangfeng nature reserve, not far from Hangzhou in SE China.

#mammalwatching #mammals #landmammals #wildlife#wildlifephotography #naturephotography #wildlifeplanet#wildplanet #discoverwildlife #naturegeography#wildgeography #ourplanetdaily #bbcwildlifepotd #hedgehog #hedgehogs_of_instagram #chinamammals ...