Rare Clouded Leopard Cub.

Rare Clouded Leopard Cub.

What could be better than two tiny leopard cubs? Three tiny leopard cubs, of course! At least, that’s the attitude of administrators at Denver Zoo, who welcomed the addition of a female, clouded leopard cub to join the zoo’s two existing cubs of the same species on Saturday (May 17). Zookeepers hope this addition will … Continue reading

For These Tiny Frogs, a Pencil is a Log.

For These Tiny Frogs, a Pencil is a Log.

A few very special frogs just hatched at the Woodland Park Zoo in Seattle. They’re fairly unique among frogs, because they break out of their eggs as fully-formed tiny frogs, not as tadpoles. The Solomon Island leaf frogs, Ceratobatrachus guentheri, which are also known as triangle frogs, complete their tadpole stage fully inside the egg, … Continue reading

Put some Lead in Your Pencil.

Put some Lead in Your Pencil.

1 There is no risk of lead poisoning if you stab yourself with a pencil because it contains no lead—just a mixture of clay and graphite. Still, pencil wounds carry a risk of infection . 2 Graphite, a crystallized form of carbon, was discovered near Keswick, England, in the mid-16th century. An 18th-century German chemist, … Continue reading

The Port Arthur Coal Mines.

The Port Arthur Coal Mines.

When an outcrop of coal was discovered at Plunkett Point by surveyors in 1833, immediate plans were made by the government to exploit the area. A local supply of coal for the colony was not the only benefit envisaged by Lt. Governor Arthur: “I think it is not possible that better employ will be found … Continue reading