FactsVibe: The World Of Facts

Ornithoptera alexandrae , the  Queen Alexandra's birdwing , is the largest  butterfly  in the world, with females reaching wingspans slightly in excess of 25 cm (9.8 inches).   This  birdwing  is restricted to the forests of the  Oro Province  in eastern  Papua New Guinea . The species was named by  Walter Rothschild  in 1907, in honour of  Alexandra of Denmark .  The first European to discover the species was  Albert Stewart Meek  in 1906, a collector employed by Walter Rothschild to collect natural history specimens from New Guinea.  Although the first specimen was taken with the aid of a small shotgun , Meek soon discovered the early stages and bred out most of the first specimens. Female:  Female Queen Alexandra's birdwings are larger than males with markedly rounder, broader wings. The female can reach, and slightly exceed, a wingspan of 25 cm (9.8 in), a body lengt...

Turritopsis dohrnii , the  immortal jellyfish , is a  species  of small,  biologically immortal   jellyfish  found in the  Mediterranean Sea  and in the waters of  Japan . The medusa of  Turritopsis dohrnii  is bell-shaped, with a maximum diameter of about 4.5 millimetres (0.18 in) and is about as tall as it is wide.   The jelly in the walls of the bell is uniformly thin, except for some thickening at the apex. The relatively large stomach is bright red and has a cruciform shape in cross section.  Young specimens 1 mm in diameter have only eight tentacles evenly spaced out along the edge , whereas adult specimens have 80–90 tentacles.  The medusa (jellyfish) is free-living in the plankton. Dense  nerve net  cells also present in the  epidermis  in the cap.  They form a large ring-like structure above the radial cannal which is commonly presented in cnidarians. ...

Europe  is a  continent  located entirely in the  Northern Hemisphere  and mostly in the  Eastern Hemisphere . It is bordered by the  Arctic Ocean  to the north, the  Atlantic Ocean  to the west, and the  Mediterranean Sea  to the south. It comprises the westernmost part of  Eurasia . Area:   10,180,000 km 2 (3,930,000 sq mi) Population:   741,447,158 (2016) Population Density:   72.9/km 2  (188/sq mi) Number of Countries: 51 Biggest Country: Russia Smallest Country: Vatican City Highest Point: Mount Elbrus Lowest Point: Caspian Sea Longest River: Volga Largest Lake: Lake Ladoga Countries in Europe: Albania,  Andorra,  Armenia,  Austri,  Azerbaijan,   Belarus,  Belgium,  Bosnia and Herzegovina,  Bulgaria,  Croatia,  Cyprus,  Czech Republic,   Denmark,  Estonia,   Finland, ...

Africa  is the world's second largest and second most-populous continent. Area:   30,370,000 km 2 (11,730,000 sq mi),  Population:   1,225,080,510   (2016 ) Population Density:   36.4/km 2   (94/sq mi) Number of Countries: 54 Largest City: Lagos Smallest City: Banjul Biggest Country: Algeria Smallest Country:  Seychelles Highest Point: Mount Kilimanjaro Longest River: Nile River Biggest Lake: Lake Victoria Countries in Africa:   Algeria,  Angola,  Benin,  Botswana,  Burkina Faso,  Burundi,  Cabo Verde ,  Cameroon,  Central African Republic (CAR),   Chad,  Comoros,  Democratic Republic of the  Congo,  Republic of the  Congo,  Cote d'Ivoire,  Djibouti,  Egypt,   Equatorial Guinea,  Eritrea,  Ethiopia,  Gabon,  Gambia,  Ghana,  Guinea,  Guinea-Bissau,...

Mauna Loa  i s one of five volcanoes that form the  Island of Hawaii  in the  U.S. state  of  Hawaiʻi  in the  Pacific Ocean . The largest  subaerial   volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on  Earth , dwarfed only by  Tamu Massif . It is an  active   shield volcano  with relatively gentle slopes, with a volume estimated at approximately 18,000 cubic miles (75,000 km 3 ),  although its peak is about 120 feet (37 m) lower than that of its neighbor,  Mauna Kea . Lava eruptions from Mauna Loa are  silica -poor and very fluid, and they tend to be  non-explosive . Mauna Loa has probably been erupting for at least 700,000 years, and may have emerged above sea level about 400,000 years ago. The oldest-known dated rocks are not older than 200,000 years.  The volcano's  magma  comes from the...

The great  Angel Falls  is a  waterfall  in  Venezuela . It is the  world's highest uninterrupted waterfall , with a height of 979 metres (3,211feet) and a plunge of 807 metres (2,368 feet). The waterfall drops over the edge of the  Auyán-tepui  mountain in the  Canaima National Park  ( Spanish : Parque Nacional Canaima), a  UNESCO World Heritage site  in the  Gran Sabana  region of  Bolívar State . The height figure 979 metres (3,211 feet) mostly consists of the main plunge but also includes about 400 metres (0.25 mi) of sloped cascade and  rapids  below the drop and a 30-metre (98 ft) high plunge downstream of the talus rapids. The falls are along a fork of the Rio Kerepacupai Meru which flows into the  Churun River , a tributary of the  Carrao River , itself a tributary of the Orinoco River. The waterfall has been known as the Angel Falls since the mid-20th century; th...

The  blue whale  ( Balaenoptera musculus ) is a  marine mammal  belonging to the  baleen whales  ( Mysticeti ).  At up to 29.9 metres (98 ft)  in length and with a maximum recorded weight of 173  tonnes  (190  short tons )   and probably reaching over 181  tonnes  (200  short tons ), it is the  largest animal  known to have ever existed. Long and slender, the blue whale's body can be various shades of bluish-grey dorsally and somewhat lighter underneath. There are at least three distinct  subspecies :  B. m. musculus  of the  North Atlantic  and North Pacific,  B. m. intermedia  of the  Southern Ocean  and  B. m. brevicauda  (also known as the  pygmy blue whale ) found in the  Indian Ocean  and  South Pacific Ocean .  B. m. indica , found in the Indian Ocean, may be another subspecies. As with other baleen...