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Torvosaurus tanneri

The specimen of Torvosaurus tanneri is currently on display in Madrid, Spain. The genus Torvosaurus...

Late Cretaceous: Mosasaur Detail

A close-up view of the dentition of an ancient aquatic, carnivorous lizard, the mighty Mosasaur...

Gods & Cephalopods

A great temple to the god Amon was built at Karnak in Upper Egypt around c. 1785. It is from Amon...

Paltechioceras of Wrangellia

Those working in the Jurassic exposures on Vancouver Island are a determined crew. Most of the...

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Heidi HendersonRSS Feed of this column.

Blue Planet, Explorer in Residence. Co-author of In Search of Ancient BC.

Fossil Huntress... Read More »

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Dragonflies, from the order Odonata, have been around for over 250 million years. The most conspicuous difference in their evolution over time is the steady shrinking of their wingspan from well over two and a half feet down to a few inches. Voracious predators, today they dine on bees, wasps, butterflies and avoid the attentions of birds and wee lizards --  but back in the day, they had a much larger selection of meals within their grasp. Small lizards and birds who today choose dragonflies as a tasty snack used to be their preferred prey.
 
The FDA puts a lot of stock into studies done on mice and many a warning label has been the outcome. Seems most of the really bad side effects hit pregnant rats the hardest. So, you can feel pretty safe as long as you are not pregnant or an upset rodent

Myomancy was a method of divination by mice. Their behaviour was observed and taken as a omen of what was to come. If their movements were calm, agitated or aggressive, much was read into it. 

Many First Nations sites were inhabited continually for centuries. The discarded shells and scraps of bone from their food formed enormous mounds called middens. Left over time, these unwanted dinner scraps can transform through a quiet process of preservationTime and pressure leach the calcium carbonate, CaCO3, from the surrounding marine shells and help “embalm” bone and antler artifacts that would otherwise decay. Calcium carbonate is a chemical compound that shares the typical properties of other carbonates. 
 Michele Pokrandt
Photo: Michele Pokrandt

Orchidaceae get their name from the Greek ὄρχις (órkhis), which literally means "testicle", a nod to the naughty nub shape of their roots.

In Greek mythology, Orchis was the son of an ugly nymph and a satyr who came upon a festival for Dionysios deep in the woods. 
Dragonflies, from the order Odonata, have been around for over 250 million years.  I've seen fossil dragonflies from the Eocene some 50 million years ago that would have been exquisite monsters to behold. Huge beasts taking to the skies and enjoying the warmth that the Earth was experiencing at the time.
The most conspicuous difference in their evolution over time is the steady shrinking of their wingspan from well over two and a half feet down to a few inches.
Metasequoia, a deciduous conifer, and one of the common fossils found in many of the Eocene sites of the Pacific northwest, flourished in Oregon's forests for millions of years. In honor of this long history, Oregon has named it their official state fossil.