Environment

Although the sun often appears yellow, and changes colours at sunrise and sunset, the color of the sun is actually white.

November 8, 2017 12:59

A whale fall, a carcass of a cetacean, can create a complex localized ecosystem in the deep sea.

November 8, 2017 12:12

A ventifact is a rock or a stone shaped by the erosion of windblown particles.

November 8, 2017 11:58

The Badlands Guardian is a geographical formation found in southern Alberta.

November 7, 2017 17:15

An isohyet is a line on a map which connects points that have the same amounts of precipitation in a given period or for a particular storm.

November 6, 2017 15:57

An examination of 7 ways various species of animals can camouflage themselves.

November 6, 2017 11:00

Although guinea pigs are popular pets, they are still considered an important food source in many parts of the world.

November 6, 2017 10:13

80% of the surface area of Nauru has been strip-mined to extract phosphate.

November 3, 2017 17:45

Bir Tawil is deserted land on the border between Sudan and Egypt that has with no trace of permanent inhabitants.

November 3, 2017 15:35

In very tall mountains, the death zone refers to altitudes where the amount of oxygen is too low to sustain life.

November 3, 2017 15:23

Sedimentary rocks are formed by the process of sedimentation.

November 3, 2017 12:52

Although the tradition count is between 9,000 to 10,000 bird species, new research has estimated the number at a possible 18,000 species of birds.

November 2, 2017 17:55

The Florida panther is the only species of cougar found east of the Mississippi River within the USA.

November 2, 2017 17:11

Seven native forest types exist in Australia.

November 2, 2017 14:08

Several factors, especially poaching, prey depletion and habitat loss, have triggered a massive decrease in the Sumatran tiger population.

November 2, 2017 13:24

California has the highest number of homes powered by solar energy.

November 2, 2017 12:53

A shoal is a submerged or partially-submerged long and narrow ridge, normally of sand, that form in rivers and oceans.

November 2, 2017 12:32

The Great European Plain is formed where the North European Plain connects to the East European Plain.

November 2, 2017 11:56

A lone polar bear, tracks of an Arctic fox, unidentified sea creatures, and several birds have been observed at the North Pole over the years.

November 2, 2017 10:16

An alluvial plain is a large flat landform that is created from the deposition of sediment or debris over a long period by rivers from the highlands.

November 1, 2017 16:20