Tuesday, 6 April 2010

PEREGRINE BEAUTY: BIRDS OF PREY

Peregrine falcons (Falco peregrinus), are exquisite birds of prey.

Reaching speeds of over 320 km/h (200 mph) they are worthy predators in the air and one of the fastest moving creatures on the planet.

Highly adaptable to hot and cold temperatures, they boast a breeding range that stretches from the icy cold Arctic tundra to the searing Tropics.

The Peregrine Falcon was added to the endangered species list back in the 1970's after their population took a beating from food sources contaminated with pesticides, DDT being the main culprit. With the ban of DDT and active breed and release programs, their numbers have significantly increased.

The very pretty female in this photo is Miss Shade. She weighs in at around 34 ounces, a wee bit larger than her male counterparts, a ratio true for most raptors.

Monday, 22 March 2010

Sunday, 14 March 2010

KASKAPAU FORMATION: DINOSAUR BONE

Bones from a variety of dinosaurs have been found in the Tumbler Ridge area of British Columbia. Here plaster is used to protect a valuable dinosaur bone collected from Flatbed Creek near Tumbler Ridge. The bone is from the Kaskapau Formation (Turonian) and was found a few metres away from a Tetrapodosaurus, "four-footed lizard," trackway.

If you are interested in learning more about the paleontology of the Tumbler Ridge area or perhap plan to visit, check out these papers and links from the lovely and hard working Lisa Buckley, one of their two resident paleontologists.

Papers:
Arbour et al. (2008ish) wrote up a paper in the Canadian Journal of Earth Science on dinosaur material collected in the 60s from BC; Rylaarsdam et al. contributed to the same journal two years earlier on the association of dinosaur footprints and skeletal material in the Kaskapau Formation.

Additional Links:

www.trmf.ca (Tumbler Ridge Museum Foundation)
www.prprc.com (Peace Region Palaeontology Research Centre)
www.canadatracks.com (Maintained by Rich McCrea, PRPRC's curator and vertebrate ichnologist)

Saturday, 13 March 2010