The Alaskan Wood Frog Freezes For Seven Months And Then Hops Away

Jeff Glennon | April 8th, 2019

In one of the strangest ways to live through the winter, the Alaskan wood frogs simply let themselves freeze into a block of ice for seven months. They are not frozen completely solid, but two-thirds of their body turns into ice. And if you bent their legs they would snap like ice.

xenophilius.files.wordpress.com

So they are effectively frozen solid during the winder, if you pick them up they will not move at all. And research has shown that there are many strange things happening to their body during this process: their heart actually stops & blood no longer flows. If you look at from an organismal level, they are actually dead. The individual cells in the frog’s body are still alive, but they stop communicating with each other.

And the craziest thing that comes out of this frozen state? When Spring arrives they easily thaw out and hop away. Biologists have known about the freezing frogs during winter for decades and believe it has to do with their glucose levels. When this process happens the frog’s glucose levels skyrocket up very high, which lets them tolerate extremely cold temperatures seen in Alaska.

To figure out how the frogs were surviving so long in a frozen state, researchers stuck mini radio transmitters to their backs to be able to monitor a group of Alaskan wood frogs for 2 years. Once the frogs were frozen and settled they placed a little cage over their spot and started to record their temperatures at regular intervals. The amazing thing is over the course of the study none of the frogs died off, meaning these frogs have mastered how to survive the cold.

It is the glucose levels that are key, they allow water to be kept inside cells, frostbite happens when all the water in a cell becomes ice. Which in turn causes cells to dehydrate and die. Having high amounts of glucose, keeping everything super sweet, stop this from happening and keeps the frog’s cells alive.

Next Article
  • Pig Farmers Say Marijuana Pig Feed Is Better

    Some farmers have a very interesting take on the progression of growing cannabis and the growing legalization of marijuana around the United States. Many believe it is the perfect crop to be commercialized and used in their animal feed - too keep them happy and relaxed! And well if you...

    Read More
  • Telegraph Invented Due To Heartbreak

    The inventor of the telegraph Samuel Morse had quite a tough life that was filled with numerous disappointments and this may really have been one of the reasons he ended up inventing the telegraph. Samuel Morse was born 225 years ago and is known around the world for having invented...

    Read More
  • Colorful Honey Created Naturally By Candy Eating Bees

    A couple of beekeepers in northeastern France were left scratching their heads in confusion when their bees started to produce thick blue and green honey completely naturally. The bees from their hives were found producing honey in odd shades of blue and green - something that was completely unheard of and never seen before. [caption...

    Read More
  • The Sheepdogs That Protect The Little Penguins

    On an Australian Island, there was a strong and vibrant colony of little penguins - that was until the foxes came and nearly ate them all up. Luckily for the little penguins they had a farmer on their side who decided to come up with an amazing way to protect them, in fact, it is...

    Read More
  • The Grueling Gaokao Exam Is The Toughest In The World

    China’s college entrance exam known as the Gaokao is thought to be one of the toughest examinations in the whole world. If you want a spot in one of the 2,200 Chinese universities then you need to ace your Gaokao exam. And it goes much deeper than that, sure the exam decides the university ranking...

    Read More
  • Tiny Sweat Bees Will Try To Feed Off Your Tears

    Recently doctors treating a Taiwanese woman for a swollen eye were shocked to find that she had over four little bees living in her, under her eyelid and feeding off her tears. These tiny little bees are known as sweat bees and are only around 3 millimeters long, so are small enough to fit under...

    Read More
  • Incredible Power Of The Mantis Shrimp

    Mantis shrimp have quickly become a creature championed on the internet due to the revelation of its optical superpowers. The mantis shrimp is able to see over 100,000 colors and also is able to see what is known as circularly polarized light - a capability that no other creature can do. ...

    Read More
  • The Time When Heineken Bottles Were Building Blocks

    Alfred Heineken after visited the Caribbeans in 1963 and finding the beaches littered with Heineken bottles, decided to amend his design and make the bottle's square. His aim was to allow the bottle to function as a brick also & let people use them to build homes in impoverished countries. ...

    Read More