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![The Amazing Survival of the Death Valley Pupfish](https://static.wixstatic.com/media/469c71_cb1ef43bb1a74dc8af4c0b00f37e7ca0~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/469c71_cb1ef43bb1a74dc8af4c0b00f37e7ca0~mv2.webp)
John Teravskis (Mr. T)
Aug 25, 20243 min read
The Amazing Survival of the Death Valley Pupfish
One of the rarest species of fish is the Death Valley pupfish (Cyprinodon diabolis). It is endemic to and exclusively found in Devils...
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![The Grand Canyon's Emerald City](https://static.wixstatic.com/media/469c71_e87c69520792400797386be0629a92ef~mv2.jpg/v1/fill/w_380,h_255,fp_0.50_0.50,q_90,enc_auto/469c71_e87c69520792400797386be0629a92ef~mv2.webp)
John Teravskis (Mr. T)
Nov 13, 20223 min read
The Grand Canyon's Emerald City
"We're off to see the wizard, the wonderful wizard of Oz" but - wait Toto! I don't think we are in Kansas anymore. Nor were we on the...
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![Up the 4-Mile Trail with Mr. T](https://static.wixstatic.com/media/469c71_c24e07eb33ab4255b973a1613ad8c40f~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/469c71_c24e07eb33ab4255b973a1613ad8c40f~mv2.webp)
John Teravskis (Mr. T)
Sep 19, 20213 min read
Up the 4-Mile Trail with Mr. T
Mr. T and friend, Jonah, took to the trail this week ... the 4-Mile Trail. So how long is the 4-mile trail? If you guessed the obvious...
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![Yellowstone: A Testimony Erupted from Stone](https://static.wixstatic.com/media/469c71_ee8e4caeb2304eae8b8e64189938732a~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/469c71_ee8e4caeb2304eae8b8e64189938732a~mv2.webp)
John Teravskis (Mr. T)
Sep 12, 20214 min read
Yellowstone: A Testimony Erupted from Stone
Yellowstone was such an amazing place that those who heard the accounts of the early explorers thought they were just telling tall tales....
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![A Hike with Mr. T at Yosemite](https://static.wixstatic.com/media/469c71_ccd30e241d654bfda959b0004d150d42~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/469c71_ccd30e241d654bfda959b0004d150d42~mv2.webp)
John Teravskis (Mr. T)
Jun 6, 20211 min read
A Hike with Mr. T at Yosemite
Join Mr. T on the trail to Sentinel Dome and Taft Point at Yosemite National Park as he talks about the testimony of granite rock...
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![Lunchtime Fossil Expedition](https://static.wixstatic.com/media/469c71_4fd85889495e4173b99d52afa4ad3e26~mv2.png/v1/fill/w_454,h_341,fp_0.50_0.50,q_95,enc_auto/469c71_4fd85889495e4173b99d52afa4ad3e26~mv2.webp)
John Teravskis (Mr. T)
Mar 30, 20211 min read
Lunchtime Fossil Expedition
Got time for lunch? ... Well, a lunchtime break to go see some fossils? You don't have to go far, there are evidences of the global...
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![Año Nuevo Fossils](https://static.wixstatic.com/media/469c71_f1c1c283ea474b12a8b917b4ea1989bd~mv2.png/v1/fill/w_454,h_341,fp_0.50_0.50,q_95,enc_auto/469c71_f1c1c283ea474b12a8b917b4ea1989bd~mv2.webp)
John Teravskis (Mr. T)
Mar 7, 20212 min read
Año Nuevo Fossils
Last Friday, my daughters and I took the day off and went to the beach. It was our first outing since COVID started a year ago. We went...
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![Fish Tales from Fish with Tails](https://i.ytimg.com/vi/1RfQmxoQbTI/maxresdefault.jpg)
John Teravskis (Mr. T)
Dec 27, 20201 min read
Fish Tales from Fish with Tails
For Christmas, I was given some very nice fossilized fish specimens. They include the extinct Diplomytus and Knightia species from the...
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![Mr. T Discovers Old Footprints in the Grand Canyon ... But How Old Are They?](https://static.wixstatic.com/media/469c71_2794eafc698049118cd728f5a42a9307~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/469c71_2794eafc698049118cd728f5a42a9307~mv2.webp)
John Teravskis (Mr. T)
Oct 18, 20191 min read
Mr. T Discovers Old Footprints in the Grand Canyon ... But How Old Are They?
Footprints don't last a long time today whether you make them in sand or under water, unless your make them in concrete. How is it that...
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![The Grand Canyon: A Testimony Eroded in Stone](https://i.ytimg.com/vi/0lOIBR8MZuY/sddefault.jpg)
John Teravskis (Mr. T)
Mar 12, 20181 min read
The Grand Canyon: A Testimony Eroded in Stone
Faith intersects science. Science has limitations. That which was not observed and cannot be repeated is beyond the realm of science. ...
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