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Why Were There No Mouse-Sized Dinosaurs? New Model Suggests Our Distant Mammalian Ancestors Are To BlameA set of five kids plastic toy dinosaurs on a wooden table.

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Why Were There No Mouse-Sized Dinosaurs? New Model Suggests Our Distant Mammalian Ancestors Are To BlameA set of five kids plastic toy dinosaurs on a wooden table.
nature-iconPalaeontology

Why Were There No Mouse-Sized Dinosaurs? New Model Suggests Our Distant Mammalian Ancestors Are To Blame

clock-iconAugust 12, 2026

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Mammals Crossed Between North And South America For Millions Of Years Before The Continents JoinedSloth swimming in the Amazon river

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Mammals Crossed Between North And South America For Millions Of Years Before The Continents JoinedSloth swimming in the Amazon river
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Mammals Crossed Between North And South America For Millions Of Years Before The Continents Joined

clock-iconAugust 3, 2026

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From Death-Ball Sponges To Bald Parrots, Take A Look At These Ridiculously Weird Creatures You've Probably Never Heard OfA very grump and cross looking potoo with big yellow eyes and a sour expression.

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From Death-Ball Sponges To Bald Parrots, Take A Look At These Ridiculously Weird Creatures You've Probably Never Heard OfA very grump and cross looking potoo with big yellow eyes and a sour expression.
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From Death-Ball Sponges To Bald Parrots, Take A Look At These Ridiculously Weird Creatures You've Probably Never Heard Of

clock-iconJuly 9, 2026

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Watch Kinkajous, Olingos, Margays, And Sloths Captured On Thermal Cameras In A Rainforest CanopyA pale yellow brown kinkajou walks down a tree branch at night

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Watch Kinkajous, Olingos, Margays, And Sloths Captured On Thermal Cameras In A Rainforest CanopyA pale yellow brown kinkajou walks down a tree branch at night
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Watch Kinkajous, Olingos, Margays, And Sloths Captured On Thermal Cameras In A Rainforest Canopy

clock-iconJune 26, 2026

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The World's Rarest Marine Mammal Just Achieved Digital Immortalityfull skeleton of a vaquita laid out on a black background and photographed from above

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The World's Rarest Marine Mammal Just Achieved Digital Immortalityfull skeleton of a vaquita laid out on a black background and photographed from above
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The World's Rarest Marine Mammal Just Achieved Digital Immortality

clock-iconJune 25, 2026

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World's Most Elusive Baleen Whale Washes Up After Suspected Boat Strike In SingaporeAn Omura’s whale subsurface lunge feeding

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World's Most Elusive Baleen Whale Washes Up After Suspected Boat Strike In SingaporeAn Omura’s whale subsurface lunge feeding
nature-iconanimals

World's Most Elusive Baleen Whale Washes Up After Suspected Boat Strike In Singapore

clock-iconJune 2, 2026

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Ancient Teeth From Heroic Tiny Mammals Suggest The Arctic Was A "Crucible" For Evolution In The Late CretaceousTiny rodent mammals scurry bewteen the feet of larger therapod dinosaurs

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Ancient Teeth From Heroic Tiny Mammals Suggest The Arctic Was A "Crucible" For Evolution In The Late CretaceousTiny rodent mammals scurry bewteen the feet of larger therapod dinosaurs
nature-iconPalaeontology

Ancient Teeth From Heroic Tiny Mammals Suggest The Arctic Was A "Crucible" For Evolution In The Late Cretaceous

clock-iconMay 19, 2026

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We Finally Know Who To Blame For Mysterious "Corkscrew" Killings Of Hundreds Of Baby SealsA "smiling" gray seal on a beach.

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We Finally Know Who To Blame For Mysterious "Corkscrew" Killings Of Hundreds Of Baby SealsA "smiling" gray seal on a beach.
nature-iconanimals

We Finally Know Who To Blame For Mysterious "Corkscrew" Killings Of Hundreds Of Baby Seals

clock-iconMay 13, 2026

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Some Amphibians Can Regrow Lost Limbs – A Simple Trick Could Be The First Step Towards Activating The Ability In MammalsA close up photo of an axolotl's left front limb. The shot shows the animal's body in the background along with a plume of its gills. In front of them is the pale, pinkish four toed arm with almost translucent webbing between the toes.

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Some Amphibians Can Regrow Lost Limbs – A Simple Trick Could Be The First Step Towards Activating The Ability In MammalsA close up photo of an axolotl's left front limb. The shot shows the animal's body in the background along with a plume of its gills. In front of them is the pale, pinkish four toed arm with almost translucent webbing between the toes.
nature-iconanimals

Some Amphibians Can Regrow Lost Limbs – A Simple Trick Could Be The First Step Towards Activating The Ability In Mammals

clock-iconApril 10, 2026

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The Majority Of Male Mammals Have A Penis Bone, But Humans Don’t. Why Is That?Skeleton of Aenocyon dirus on display at the Page Museum at the La Brea Tar Pits

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The Majority Of Male Mammals Have A Penis Bone, But Humans Don’t. Why Is That?Skeleton of Aenocyon dirus on display at the Page Museum at the La Brea Tar Pits
nature-iconanimals

The Majority Of Male Mammals Have A Penis Bone, But Humans Don’t. Why Is That?

clock-iconMarch 31, 2026

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There's A Physical Limit To How Small Mammals Can Be, And The Etruscan Shrew Is Basically ItClose up of an Etruscan shrew being held on a human finger

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There's A Physical Limit To How Small Mammals Can Be, And The Etruscan Shrew Is Basically ItClose up of an Etruscan shrew being held on a human finger
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There's A Physical Limit To How Small Mammals Can Be, And The Etruscan Shrew Is Basically It

clock-iconMarch 27, 2026

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Rare Blonde Echidnas And Tiny Marsupials Steal The Show In First-Ever Camera Survey Of Remote Tasmanian IslandA blonde echidna climbs over a tree branch on the ground, captured by a camera trap.

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Rare Blonde Echidnas And Tiny Marsupials Steal The Show In First-Ever Camera Survey Of Remote Tasmanian IslandA blonde echidna climbs over a tree branch on the ground, captured by a camera trap.
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Rare Blonde Echidnas And Tiny Marsupials Steal The Show In First-Ever Camera Survey Of Remote Tasmanian Island

clock-iconMarch 17, 2026

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Cope's Rule: Why Evolution Appears To Favor The Large And Chunky – Until It Doesn'tA large, battle-scarred elephant seal barks at a rival.

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Cope's Rule: Why Evolution Appears To Favor The Large And Chunky – Until It Doesn'tA large, battle-scarred elephant seal barks at a rival.
nature-iconanimals

Cope's Rule: Why Evolution Appears To Favor The Large And Chunky – Until It Doesn't

clock-iconMarch 12, 2026

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There's Only One Known Venomous Primate In The World, And It's One You Least SuspectSunda slow loris (Nycticebus coucang) in a tree at night

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There's Only One Known Venomous Primate In The World, And It's One You Least SuspectSunda slow loris (Nycticebus coucang) in a tree at night
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There's Only One Known Venomous Primate In The World, And It's One You Least Suspect

clock-iconJanuary 29, 2026
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The Only Living Mammals That Are Essentially Cold-Blooded Are Highly Social OddballsNaked mole rats, huddling in a burrow.

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The Only Living Mammals That Are Essentially Cold-Blooded Are Highly Social OddballsNaked mole rats, huddling in a burrow.
nature-iconanimals

The Only Living Mammals That Are Essentially Cold-Blooded Are Highly Social Oddballs

clock-iconJanuary 5, 2026
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