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Posts by George Sranko

link to How Do Penguins Stay Warm? (Why don’t Penguin Feet Freeze?)

How Do Penguins Stay Warm? (Why don’t Penguin Feet Freeze?)

Penguins are superbly adapted to staying warm in sub-zero temperatures. They use vasoconstriction of blood vessels under the skin to prevent losing heat to the outside.  Penguin feet don’t...

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link to Are Birds Dinosaurs? Latest Science (How Birds Evolved from Dinosaurs)

Are Birds Dinosaurs? Latest Science (How Birds Evolved from Dinosaurs)

Yes, birds are the direct descendants of theropod dinosaurs, such as T. rex, that roamed planet earth over 100 million years ago.  Chickens, turkeys, hummingbirds – all birds, in fact – are...

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link to How do Snakes Mate? (Snake Reproduction Explained in Detail – with Videos and Diagrams)

How do Snakes Mate? (Snake Reproduction Explained in Detail – with Videos and Diagrams)

Male snakes have two penises, each with its own testicle, but they only use one at a time.  During copulation, the male inserts one hemipenis into the cloaca of the female to transfer his...

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link to Why do Male Octopuses Die after Mating? (How does Octopus Senescence work?)

Why do Male Octopuses Die after Mating? (How does Octopus Senescence work?)

Death is inevitable for male octopuses once they’ve mated because they stop feeding, they become uncoordinated, often attracting predators in the wild, and they lose the ability to heal their skin....

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link to Can Dead Jellyfish Sting?  How Do Stinging Cells (Nematocysts) Work? Is Vinegar Effective?

Can Dead Jellyfish Sting?  How Do Stinging Cells (Nematocysts) Work? Is Vinegar Effective?

Yes, dead jellyfish can still sting you, even if you find one washed up on the beach.  And it doesn’t have to be a whole jellyfish - even small bits and pieces of tentacle can cause a painful...

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link to Do Woodpecker Tongues Wrap Around the Brain? (Action Video and Diagrams)

Do Woodpecker Tongues Wrap Around the Brain? (Action Video and Diagrams)

Woodpeckers with long tongues have specialized wiry structures that wrap around the skull, but not in direct contact with the brain. This Y-shaped structure consists of stiff, yet flexible,...

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About the Author

George Sranko, B.Sc., MA (Hons), is a retired professional biologist, photographer, author and speaker. He has explored fascinating nature topics and epic destinations for over 40 years, beginning with his first job as a National Park naturalist. George is a popular destination and science lecturer on cruise ships throughout the world, with hundreds of presentations under his belt. He has visited over 90 countries and happily shares his personal experiences and insights in a dynamic and entertaining style.

BioGeoPlanet.com is a participant in the Amazon Services LLC Associates Program. As an Amazon Associate, biogeoplanet earns from qualifying purchases. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies.

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