24 results found

Search Results for: beak

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Rostrum

Definition noun, plural: rostra (zoology) (1) A beak-like or snout-like projection, such as that of the crocodile or... Read More

Beaker

Beaker a thin glass vessel, with a lip (beak) for pouring, used as containers for... Read More

Adaptive Radiation

Reviewed by: Mary Anne Clark, Ph.D. When Charles Darwin was in the Galapagos Islands, one of the first things he... Read More

Disruptive Selection

An evolutionary process known as disruptive selection (or disruptive natural selection) causes a population to become... Read More

Horn

Horn 1. A hard, projecting, and usually pointed organ, growing upon the heads of certain animals, especially. Of the... Read More

Takahē (Porphyrio hochstetteri)

By: Maria Victoria Gonzaga Previously, we've seen the different animals endemic to New Zealand. Due to the... Read More

New Zealand’s Unique Fauna

By: Maria Victoria Gonzaga In the previous lesson, we learned about the high biodiversity of New Zealand and how... Read More

Soosoo

soosoo (Science: zoology) A kind of dolphin (Platanista Gangeticus) native of the river Ganges; the Gangetic dolphin. It has... Read More

New Zealand’s Biodiversity

Written by: Maria Victoria Gonzaga Peer-reviewed by: Cathy Buntting, Ph.D. and Andrea Soanes Why is New... Read More

Examples of Natural Selection

Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... Read More

Allopatric speciation

We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More

"Mummified" Dinosaur Discovered In Montana

By Hillary Mayell An onsite restoration drawing of how "Leonardo" may... Read More

Prune

prune 1. To lop or cut off the superfluous parts, branches, or shoots of; to clear of useless material; to shape or smooth... Read More

Ahool

The ahool is a flying cryptid, supposedly a giant bat, or by other accounts, a living pterosaur or flying primate. Such a... Read More

Evolution

Evolution Definition Evolution is defined as a change in the genetic composition of a population over successive... Read More

Gills

Gill a woody glen; a narrow valley containing a stream. Origin: Icel. Gil. 1. (Science: anatomy) An organ for aquatic... Read More

Nail

nail 1. (Science: anatomy) The horny scale of plate of epidermis at the end of the fingers and toes of man and many apes.... Read More

Digastric muscle

Digastric Definition The digastric muscle is a paired muscle located under the jaw, consisting of the anterior and... Read More

Nose

nose 1. (Science: anatomy) The prominent part of the face or anterior extremity of the head containing the nostrils and... Read More

Spot

spot 1. A mark on a substance or body made by foreign matter; a blot; a place discoloured. Out, damned spot! Out, I say!... Read More

A Look Into Natural Selection and its Mechanisms

Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé, and... Read More

Community Patterns

By: Maria Victoria Gonzaga In the previous lesson, we learned what a population is, its attributes, and processes... Read More

The Dinosaurs

Everyone has heard about the dinosaurs. No doubt one of the reasons why is because of their size, another being the fact... Read More