Newts of Fire and Ice

newt

Newts 101:

Red-Spotted Newts (Notophthalmus viridescens) are the coolest animals on the planet. I should know – I worked with over 10,000 of them for two years.

Newts have four different life stages – egg, larva, eft, adult. The eft stage is most unusual since it’s completely terrestrial (for up to 7+ years!) AND incredibly poisonous (you have to eat it though). People used to think that efts were born from fire. The red color may have contributed to this folktale, but it may also be their emergence from logs thrown on the fire. Newt skin secretions can protect them from flame for a short time. It’s the reason many firefighter companies have a newt in their logo. Asbestos was once called “salamander wool”.

Frozen Newt-sicle

I researched the Red-Spotted Newt for my Master’s Degree (and fell in love with them – hence, the name of this blog). Every week, I trapped newts and recorded their spot patterns to identify each one individually. Since Red-Spotted Newts are fairly common, I trapped, identified, and released over 10,000. The scientific relevance of this work turned out to be … well… lame. Reports indicated that this population was very unusual. Turns out (sigh) it wasn’t. But I did learn a couple random things that no one else has reported.

  1. Newts can freeze solid and survive. I know because I left one out too long while I was checking traps and it was a little newt-popsicle when I returned. I took it back to the lab to use as a dissection specimen, but thankfully she’d recovered.
  2. While most experts call Red-Spotted Newts aquatic as adults, I think my study population was terrestrial with a brief aquatic period for reproduction. Even in permanent pools of water, newts leave in the fall. Only a few females overwinter in the ponds.
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5 thoughts on “Newts of Fire and Ice

  1. Thanks for the fun facts about newts. They are cool indeed! I watched the movie Matilda a while back and there is a funny scene with a newt. The newt and Matilda’s joy in learning made me think of you.

    • I loved that movie! I do have to admit that I cringed when the kids put the newt in the water (it was a terrestrial eft!). Plus, you know, the poison thing. 🙂

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