classroom resources
From the Cambrian Explosion to the Great Dying
Dinos of the Deep | videos
The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth’s history. With near-constant revolutions in life, punctuated by catastrophic extinctions, it […]
The Age of Reptiles in Three Acts
Dinos of the Deep | videos
Reptiles emerged from the Paleozoic as humble creatures, but in time, they grew to become some of the largest forms of life ever to stomp, swim, and soar across the […]
When Fish Wore Armor
Dinos of the Deep | videos
420 million years ago, some fish were more medieval. They wore armor, sometimes made of big plates, and sometimes made of interlocking scales. But that armor may actually have served […]
The Return of Giant Skin-Shell Sea Turtles
Dinos of the Deep | videos
The biggest turtle ever described wasn’t an ancestor of today’s leatherback turtles or any other living sea turtles. But it looks like there are some things about being a giant, […]