Crows, make up most of the species of bird belonging to the genus 'Corvus'. In many cultures and across history, they have been seen as symbols of intelligence and adaptability.Within the Corvus genus, there are 47 extant species currently recognised, and 36 of these are … [Read more...]
Extinct is a classification category on the International Union for the Conservation of Nature’s (IUCN) Threatened Species List.
Extinction occurs when a species — also called “taxon” for the list — no longer exists anywhere on earth.
When scientists have done extensive research and agree that there is no longer a single individual specimen of the species they declare it extinct. Essentially, extinction represents the termination of a taxon.
There are six main reasons why species become extinct:
- Habitat loss
- Introduction of a foreign species
- Loss of genetic variation
Conservation Status List
- Extinct in the Wild
- Critically Endangered
- Near Threatened
- Least Concern
- Data Deficient
- Not Evaluated
Ever heard of the Bandicoot? You might have heard of the infamous 'Crash Bandicoot' that was centre stage to a host of PlayStation games. But do you know much about the incredible little marsupials on which that character is very loosely based?These fascinating marsupials, … [Read more...]
Stellers sea cow (Hydrodamalis gigas) is a an extinct sirenian described by Georg Wilhelm Steller in 1741. Most of what we know about Steller’s sea cow comes from Steller's observations. It belonged to the order Sirenia and the family Dugongidae, of which the dugong (Dugong … [Read more...]
PHYSICAL DESCRIPTION The Brachiosaurus was the largest, heaviest, and among the least inteligent dinosaurs found to date. This massive dinosaur could weigh anywhere between a staggering 60 thousand to an unbelievable over 170 thousand pounds (That is roughly 48 mid sized cars). … [Read more...]
The Dilophosaurus was a flesh eating dinosaur that lived in North America and China about 193 million years ago, during the Sinemurian stage of the Early Jurassic Period.Its name refers to twin crests that adorn the skull of this ancient reptile; “two crested lizard”; derived … [Read more...]
PHYSICAL DESCRIPTION The Dimetrodon resembled much of what people would misclassify as a “dinosaur”, however it lived during the Permian period (about 260 million years ago) which is before most dinosaurs. It was about nine feet long, and had legs that were on the side of its … [Read more...]
PHYSICAL DESCRIPTION The Edaphosaurus resembled much of what people would believe today to be a “dinosaur”, however it lived during the Permian period (about 260 million years ago) which is before most dinosaurs. It was very similar to the Dimetrodon in its appearance, except … [Read more...]
PHYSICAL DESCRIPTION Iguanodons were semi large dinosaurs. They were about 30 feet long and weighed roughly 10 thousand pounds. The iguanodon measured about 16 feet tall at the head. It most likely walked on 2 feet and had two arms. The arms each had a hand with 4 fingers and one … [Read more...]
PHYSICAL DESCRIPTION The protoceratops was one of the smaller dinosaurs. They were about 3 feet tall and roughly 7 feet wide. They walked on four legs, which were all the same size. They had frills at the back of their neck. The protoceratops was a roughly light dinosaur at … [Read more...]
PHYSICAL DESCRIPTION Pachycephalosaurus are most widely known for their very thick skull roof. The bone on top of its head was close to ten inches thick, and was probably used for defense. Pachycephalosaurus would probably use the top of their head much like a modern day ram … [Read more...]