Tag Archive | Extreme Animals

Yes, It Exists: The Tardigrade

Tardigrade Exhibit Signage
All Photos By Gail

This past summer, the Museum of Natural History had a fun special exhibit called Life at the Limits: Stories of Amazing Species. There was an additional fee (above regular admission)  to get into the exhibit, but I paid it because I wanted to see this thing that looks like a Bear in a Hazmat Suit. Because, What the Hell is That Thing? I wondered.

Tardigrade Model

It turns out that Hazmat Bear is called a Tardigrade — a water-dwelling, eight-legged, segmented micro-animal — and it was definitely the star of the show! There were giant, suspended Tardigrade models all over the ceiling inside the exhibit, accompanied by many informative placards telling you why they are so special.

For example, the microscopic Tardigrade can survive for years without water. Generally, it lives on damp moss, where water forms a film around its body. If the moss dries out, the Tardigrade senses trouble. It shrinks into a ball and its vital systems nearly shut down. The dried-out-ball — called a Tun — can live on for up to a decade, then spring back to action when moistened with water again. Fascinating.

Two Tardigrades

The Tardigrade has some fun nicknames as well, such as the “Water Bear” or “Moss Piglet” (My favorite). Tardigrades are a large group of animals that includes some of the toughest creatures in the world. They have been known to survive temperatures far above boiling, and colder than the surface or Pluto. In a word: Resilient!

Tardigrade Model Photo

Why had I never even heard of these little guys before learning about them in a museum exhibit?
Tardigrade

Tardigrade, I am glad you exist!

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