Visit Blog
Explore Tumblr blogs with no restrictions, modern design and the best experience.
#mammals
rinusuarez · a day ago
Text
Tumblr media
Blue Whale
"We must feel lucky to be sharing the world with the biggest animal that ever existed."
Not even the biggest dinosaur is a match for the size of the Blue Whale, the largest animal that ever existed on earth. The largest-ever registered was 33 meters. It is the biggest size the animal can reach in order to function correctly. A fifth subspecies could be a population that inhabits the coasts of Chile. A group with unique vocalization and notable genetic differences.
I must say that whales are fascinating. I still find it hard to wrap the size of this animal. I hope one day I could see one of them. Today is protected because it was heavily hunted almost to its extinction. In 1966, its hunt was banned by the International Whaling Commission. ___________________________
Thank you guys for your support. Likes, reblogs, follows or the three will be very much appreciated. More content on my Instagram account and nice posters on my store.
Instagram Store
21 notes · View notes
birds-and-friends · 2 months ago
Photo
Tumblr media
Tumblr media
Tumblr media
Desert Golden Mole, "Night on Earth" Episode 1, via Amp
43K notes · View notes
paleoart · a month ago
Photo
Tumblr media
Endling Noun. An individual living thing that is the last survivor of its species or subspecies. Once the endling dies, the species becomes extinct.
(Elasmotherium sibiricum)
Patreon • Ko-fi • Facebook  • Twitter • Prints & Merch
3K notes · View notes
terranlifeform · 5 months ago
Photo
Tumblr media
Polar bear (Ursus maritimus) with cub at Wapusk National Park in Canada
Nedko Nedkov
3K notes · View notes
seatrench · 7 months ago
Video
A Bottlenose Dolphin using echolocation to hunt fish hidden in the sand
(source)
5K notes · View notes
foxpost-generator · a year ago
Text
Tanuki are not related to raccoons? They aren't even mustelids?!?!
They are... vulpini.
Tumblr media
(Nyctereutes or raccoon dogs include tanuki)
Welcome to the fox pile, tanuki!
Tumblr media
33K notes · View notes
catchymemes · 11 months ago
Photo
Tumblr media
10K notes · View notes
how2skinatiger · 8 months ago
Photo
Tumblr media
Tumblr media
Long-tailed weasel by loren chipman || CC BY-NC 2.0
4K notes · View notes
taysanimaladventures · 18 days ago
Text
Anteaters eat like this. They get a smoothie.
And they do not eat the ants. I wish they did I am tired of ants.
968 notes · View notes
animalvegetablemineral · a month ago
Text
Tumblr media
There is a group of wolves in British Columbia known as "sea wolves" and 90% of their food comes from the sea. They have distinct DNA that sets them apart from interior wolves and they're entirely dedicated to the sea swimming several miles everyday in search of food.
Tumblr media
713 notes · View notes
birds-and-friends · 4 months ago
Photo
Tumblr media
Tumblr media
Full video: WILD FINLAND / Four seasons in Finnish nature, Ossi Saarinen
3K notes · View notes
vurtual · 2 months ago
Photo
Tumblr media
Watching over (by Incrosnatu Danut)
1K notes · View notes
terranlifeform · 4 months ago
Photo
Tumblr media
Mustang (Equus ferus caballus) in Oregon, U.S.
David Renwald
1K notes · View notes
seatrench · 8 months ago
Photo
Tumblr media
Tumblr media
Tumblr media
Baleen Whale Fall
(source)
5K notes · View notes
americasgreatoutdoors · 9 months ago
Photo
Tumblr media
"Aren't red foxes supposed to be red?" As it turns out, they can have silver, black or mixed coloration, like this stunning fox found at Mount Rainier National Park in Washington. Keep an eye out for the white tip of the tail, a characteristic they all share. Photo courtesy of Dani Tinker.
2K notes · View notes
thechekhov · 7 months ago
Note
.......but why DOES flight occur so rarely for mammals?
I’m not the best person to ask this, but from my very surface knowledge of evolution and biology, there are two speculated reasons I’ve read about:
1) It’s expensive. 
Not in the sense you may be thinking of - animals won’t be crashing the stock market anytime soon (much as we might want them to) but in order to survive, all animals must balance their expanded energy that they use for Super Special Animal Moves like Fly, Swim, Forage, Tackle, etc, against their intake of energy (eating things). 
For example, to maintain its ability to be Huge and Strong, an African elephant must consume about 70,000 calories a DAY. But with their food source being what it is, in order to meet this need, they need to graze for 12-16 hours of that day. 
Tumblr media
Flight requires quite a bit of energy as well, and requires more of it the larger you are. Therefore, in order to achieve powered flight (not gliding, which evolves much more frequently) an animal would need to be able to support its energy needs AND balance that with its size/weight. 
Bats, the only mammals currently capable of true flight, digest things HELLA FAST and have thinner, more flexible bones. (Birds have hollow ones, which helps with the weight issue as well.) This means that they are more capable of easily balancing their necessary caloric intake against the energy they need to fly.
2) For many mammals, it’s unnecessary. 
Evolution isn’t a conscious process - it has no goal in mind. Things which CAN happen - based on the resources and time available to a group of organisms - MAY happen. 
But most often, evolution takes place due to availability or opportunity. 
Say, for example, a food source.
Let’s take a look at a simple representation of an ecosystem with available food sources.
Tumblr media
If the ecosystem has food in 3 niches (places) 
the ground 
the trees
in the sky
then what would happen if we plopped down some hungry Organic Things into it? 
Tumblr media
Well, if they can all only walk on land, they’re going to eat all the food and die of starvation pretty fast. Especially if one of the organisms is naturally better at it - has some sort of advantage that makes it easier for them to get the specific type of food.
Tumblr media
BUT, if they all go after different TYPES of food, they could potentially stay alive as a species if they randomly evolve/develop an advantage for ANOTHER type of food.
Tumblr media
Or sometimes they don’t/can’t.
Tumblr media
And depending on what the needs are, some organisms will have more of a pressure to evolve specialized adaptations like flight. 
But those pressures are not always present - especially for mammals, which have been, historically, pretty good at filling out other, non-air niches. 
Plus evolving flight after you’ve already got other advantages is unlikely, given that you may have to take some evolutionary moonwalks to get to the correct stat set.
Tumblr media
...
Anyway I feel like I got carried away with the yellow blobby things, but I hope that helps out... somewhat.
Tumblr media
1K notes · View notes
how2skinatiger · 7 months ago
Photo
Tumblr media
Tumblr media
Bat-eared fox, (Otocyon megalotis), at Kgalagadi Transfrontier Park, Northern Cape, South Africa
Photos by Derek Keats || CC BY 2.0
1K notes · View notes