Saturday, June 27, 2015

What's small and resembles a hammerhead shark?

Pterosaurs are impressive but weak at flying backwards
image: Examiner
They pre-date dinosaurs and have evocative names that are nearly as cool as T-rex: hawkers, cruisers, chasers, emeralds, tigertails, petaltails, skimmers, and goldenrings are just a few.

Can you guess this creature?

They successfully capture their prey 95% of the time, making them perhaps the most successful predator we know.

They can instantly fly in any of 6 directions – up, down, forward, backward, left, right.

They can fly 30 mph (50kph) forward and 10 mph backward.

They can migrate across oceans.

Any ideas yet?

Did I mention they are about 1-4 inches (2.5-10 cm) long?

Monday, June 15, 2015

Fats come in many forms - use wisely

Low-fat?  No-fat?
photo credit: Little Baby's Ice Cream
Fats. They're like the Devil for many people trying to lose weight.

In our consumer economy, Low-Fat, Fat-Free, and Light options abound, never mind that the product now contains more sugar, flour, or thickeners to recreate some semblance of the texture and flavor of the original product.

Happily for all of us, recent research has shown that certain types of dietary fat can actually improve our health and has led to changes in nutritional guidelines for fats.