Diversity of Whales; Order Cetacea

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Cave Beetle; Xuedytes bellus

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This article was originally posted at Amazing Zoology. View original article at https://is.gd/4ryoch
Xuedytes bellus. Image credit: Sunbin Huang & Mingyi TianXuedytes bellus, a cave dwelling beetle was discovered in a cave in Guangxi Province, China. Like much of southern China, this is in a vast landscape riddled with caves. This new species of beetle is about 9 mm in length, with elongated head and prothorax. First pair of legs are attached to the body segment immediately behind the head.
Beetles that evolve in the darkness of caves often take on a similar set of characteristics, including narrow bodies, spider-like appendages and loss of wings, eyes and pigmentation. Such beetles are an example of convergent evolution.
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1.
Tian M, Huang S, Wang D. Discovery of a most remarkable cave-specialized trechine beetle from southern China (Coleoptera, Carabidae, Trechinae). Z. 2017;725:37-47. doi:10.3897/zookeys.725.21040



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These electron microscopic images of human body will astonish you

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This article was originally posted at Amazing Zoology
Artery


Coloured scanning electron micrograph (SEM) of a a small artery (blood vessel) cut open with RBCs (red coloured) rushing outside.
Blood Clot


Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes) trapped in a fibrin mesh (yellow). The production of fibrin is triggered by cells called platelets, activated when a blood vessel is damaged. The fibrin binds the various blood cells together, forming a solid structure called a blood clot. A blood clot is a normal response, preventing an excessive loss of blood. However, inappropriate clotting is a major cause of heart attacks and strokes.
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They look like little cinnamon candies here, but they are actually the most common type of blood cell in the human body – red blood cells (RBCs). These biconcave-shaped cells have the tall task of carrying oxygen to our entire body; in women there are about 4 to 5 million RBCs per micro liter (cubic millimete…
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Bat-roost? To curb malaria!

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This article was originally posted at Amazing Zoology. View original article at https://amazingzoology.com/bat-roost-curb-malaria/

110 years ago, one man set out to rid Texas of Malaria – with the help of what was then a very unlikely source… bats! Dr. Charles A. Campbell had a simple plan. He knew that bats eat mosquitoes, and believed that if he could entice thousands of bats to live in Malaria-ridden areas, they would single-wingedly eradicate the disease. After years of fruitless experimentation with small roosting boxes, he decided to go BIG, with a 30-foot tower containing roosting shelves, guano lures, and a meal plan – three large hams! The $500 contraption was, alas, a flop. Campbell realized that he didn’t understand bats enough to provide suitable homes. He spent months studying caves and roosts to learn what bats needed most. In 1911 he constructed a new, improved tower at Mitchell’s Lake, where 90% of the locals were sick with Malaria. Within 4 years, Mitchell’s Lake was M…
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