The evolution of bats
By: James Johnson
Bats, flying mammals, and those are what bats actually are. When one talks about bats, they often don't realize that they are referring to a broad classification of creatures rather than a specific type. It is like saying carnivores, which include wolves, tigers and polar...
The evolution of the dog
By: James Johnson
The evolution of the dog or the devolution of the wolf, because that was where dogs really came from, wolves! As one way to state it is that a dog is a wolf in plain clothes. Dogs can and do interbreed with wolves, producing fertile...
Understanding ant behavior
By: M E Skeel
Ants may be small but they are one of the most numerous and successful families of animals on the earth. They are also widespread, occuring in practically every terrestrial ecosystem, although they are most common in the tropics. They are insects, so they have six...
Biology of the Amoebae
By: M E Skeel
i just love Amoebae. I love watching them ooze about under a microscope. I love the idea of something so small yet so... alive. They are single-cellular protozoans, little animals that stalk their prey, pounce and feed, digest and excrete and move, move, move. Their...
Introduction to the evolution of mammals
By: M E Skeel
The class Mammalia is so big and diverse that it is hard to get a grasp of how it evolved. From elephants to shrews, from anteaters to whales, the diversity of form is mind boggling. However if one looks at the orders of mammals, the...
The study of Acarology
By: M E Skeel
Acarology is the study of mites and ticks, animals which are classified in the Order Acari of the Class Arachnida, which is part of the Phylum Arthropoda. As such they have typical arthropod characteristics, including an exoskeleton which they have to shed to grow, and...
The intelligence of octopuses
By: Tammy L Mahan
The octopus have very unique defense mechanisms unlike the many other ocean dwelling occupants, the octopus is not equipped with sharp teeth or poisonous sting rays. They are however exceptionally strong which works to their advantage when capturing their prey. Octopuses have proven to be...
Biological explanation of the endoplasmic reticulum
By: Rohit Kulkarni
The Endoplasmic Reticulum (ER) forms an interconnected network of tubules, vesicles and sac-like structures called cisternae within the cells. It is a part of the endomembrane system which consists of the plasma membrane of the cell, the nuclear envelope, etc. apart from the ER. It...
Ribosomes: an explanation
By: Rohit Kulkarni
Ribosomes are the protein factories in our cells. The way things work in a cell mean that the DNA codes for specific sequences of amino acids in various proteins, and these proteins, on appropriately folding are responsible for various activities and functions of the cell...
Mitochondria defined
By: Rohit Kulkarni
Mitochondria are the power houses' of the cell. Their main job is to produce energy required for the functioning of our cells. They are double membrane structures, and their shape and number varies depending on the cell type. Their membranes are composed of phospholipid bilayer...

 

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