The evolution of primates
By: jaybob
The Evolution of Primates: Primate evolution has been a long process of natural selection that has produced the species of monkey, ape, and even human beings that we have today. Within the evolutionary pressures that arose around sixty-five million years ago, a species of arboreal...
By: Kathy Stemke
Have you ever wondered why the 3,000 species of female mosquitoes bite some people more often than others? And why are those welts so doggone itchy? FOOD SOURCEThe females are the egg producers and need blood to fertilize their eggs. They lay multiple sets...
By: Trenna Sue Hiler
The most recognized symbol of the Galapagos is the tortoise. In fact the island earned its name because of a tortoise. The Spanish ship came upon the islands because they had been tossed off course. They noticed the shape of the tortoise shell was much...
By: Pauline Abreu
The history of the giant tortoises of the Galapagod Islands is an interesting one. It's amazing how these tortoises have survived over the years, and are still surviving to this day on the Islands. These giant tortoises are idealy suited to the climate of the...
How tigers hunt
By: Effie Moore Salem
Tigers are great hunters.They stalk, they wade noiselessly through tall grasses and wait patiently for their prey to make an entrance. When their potential meal gets within close range, they jump out and overpower them with their mighty claws. Then with their front paws...
By: Christopher Chatterton
How Tigers HuntHave you ever watched a domestic cat stalking a bird in your yard? It still fascinates me when I watch our seventeen-year-old black cat, lowering herself to the ground, eyes focused with a two-thousand-yard stare on her quarry, ready to pounce at the...
How ethology might help us
By: Janet Grischy
Ethology , the zoological study of animal behavior, is helpful to us because humans are animals. Objectivity is a basic tenet of science, and how better to be objective about our own behaviors than to see them reflected in the other animals? We gain perspective too...
How mammals hibernate
By: Laureen Manera
Hibernation is a curious thing that is still not fully understood by biologists even today. They may understand why animals hibernate, but not how they manage to do it, and for so long.Many creatures, including insects, reptiles, amphibians, and birds, either hibernate or go...
By: Rex Trulove
Like most true flies, mosquitoes require a great deal of protein in order to breed. This is particularly true of females.However, since the species has a short life, much of it aquatic, evolutionary processes took a side step. Rather than developing complex systems for...
Ribosomes: an explanation
By: Debbie Luyo
Ribosomes are tiny cellular workshops where proteins, also known as polypeptides, are assembled, in the process known as translation. Messenger RNA, or mRNA, transcribed from DNA, is the template for synthesis of proteins essential for biological function. During translation amino acids are joined together to...

 

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