Biology News
"Tiny forests" can be biodiversity hotspots in urban environments, say Dutch - Horticulture Week


Horticulture Week
"Tiny forests" no larger than tennis courts, incorporating many native tree species of varying heights close together, boast higher biodiversity for their size than conventional woodlands and may have other environmental benefits too, according to ...

Woman in fight for life after Botany vehicle fall - Daily Telegraph


Daily Telegraph
TWO port shuttle carriers collided causing a female wharfie to fall seven metres to the concrete below. The 55-year-old employee at Port Botany was placed in an induced coma and is fighting for her life. The incident happened shortly after midday ...
NEWS.com.au
9news.com.au
Daily Mail
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Death Drives the Evolution of Life on 'One Strange Rock' - Space.com


Space.com
Researchers believe that evolution really began when one particular single-celled microbe (known as an archaeon) ingested a bacterium. Instead of being digested, this meal survived inside the archaeon and became a permanent part of its new host ...

The Life Tree: Amoebas

Smiths Station, Alabama - United States

Free-living protozoan groups that inhabit soils and natural waters are extremely diverse, not only in their structure but also in the manner in which they feed, reproduce, and move. The amoebas are a diverse group of free-living protozoa that probably evolved from a number of different primitive protozoan ancestors. The amoeboid group includes hundreds of different organisms, ranging in size from about .25 to 2.5 mm (about 0.0098 to 0.098 in). Amoebas are considered the most primitive animals and are classified in the kingdom Protista. All amoeboid organisms have thin cell membranes, a semirigid layer of ectoplasm, a granular, jellylike endoplasm, and an oval nucleus. Some species live on aquatic plants and some in moist ground; others are parasitic in animals and humans.

At least six forms of amoeba are parasitic in humans. Most important of these is Entamoeba histolytica, which causes amebiasis and dysentery. The diseases often occur in epidemics when raw sewage contaminates water supplies or when soil is fertilized with untreated wastes.

Amoebic dysentery is most commonly spread by water or contaminated, uncooked food or from carriers. Flies may carry the cysts to spread the amoeba from the feces of infected persons to food. In many publications Entamoeba histolytica is cited as infecting one tenth of the world population, or 500 million people.

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A project containing information about the diversity of organisms on Earth, their history, and characteristics. The information is linked together in the form of the evolutionary tree that connects all organisms to each other.

Tree of Life Web: Echinoderms
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Echinoderms are among the most distinctive of all animal phyla. Inclusion in the phylum is readily diagnosable on basis of the four synapomorphies below. Most of these features are present, or can be inferred, even in the earliest fossils. Together, these synapomorphies define much of what makes the functional biology of echinoderms distinctive from that of other metazoans.

Amoebas are More than Just Blobs
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Article by Wim van Egmond on the humble Amoeba, how to find and identify it, its behavior, locomotion and feeding, with many fine photographs.

Life Through Geologic Time: A Pictorial History of Life on Earth
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Provides a pictorial look at the geologic time scale, beginning with the Precambrian through the Holocene.

Life Technologies - A Global Life Sciences Company
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We believe in the power of science and appreciate its rigorous discipline. That's what drives our passion for innovation, leading to transformative offerings that support endeavors throughout the world. Our extensive range of products and services, from instruments to everyday lab essentials, ensures quality and performance for every lab, every application. Customers in more than 180 countries count on us in their quest to improve life in mean

What Tree is That?
United States

Resources from the National Arbor Day Foundation for identifying trees and leaves in the Eastern, Central, and Western United States.

What Tree Is It?
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You see an unknown tree. Or perhaps you've found part of a tree, and you want to know what kind of tree it came from. The focus is on common trees of Ohio.

How Does Water go Up in a Tree?
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Abstract of a study by Charles M. Redman on the fluid dynamics of plants.

Tree-Identification.com
United States

Provides information about the general identification of trees as well as more specific techniques for a limited number of species. Includes information about dendrology.

United Kingdom

Site for The Dendrologist, a quarterly magazine. Also contains tree tips and a record of the dates of upcoming dendrology events in the UK.