Test Post from Amazing Zoology

Test Post from Amazing Zoology
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Anatomy reveals, how giraffes keep their long neck high, without using muscles!

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Giraffe’s neck consists of seven vertebrae like any other mammals. Only difference is that, all individual vertebrae are elongated, usually more than ten inches in length.  Moreover, a normal giraffes neck is almost 6-foot long and weighs around 270 kg. [1] Anyone with basic knowledge in zoology wonders how an animal like giraffe can hold such a heavy neck, always high above the ground! The secret lies in its anatomy. A giraffe’s neck contains huge amounts of muscle. Obviously it needs that. But that is not holding its neck so high. It is a band of elastic tissue, a ligament that runs from top of the neck to start of tail vertebrae. Actually the ligament band is normally holding its neck high by just pulling its neck against the weight of head and neck. The weight of its head is acting downward and the ligament is holding it upward. So the natural position for giraffe’s head is almost 55˚ from horizontal level. It is using its muscles to lower its head ...
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Whale Falls and Whale fall communities

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This article was originally posted at Amazing Zoology . View original article at http://amzoo.in/x5giu Contents 1 What is a Whale Fall? 2 What happens to whales when they die? 3 How often does that happen? 4 Where can we find whale falls? 5 What happens to dead whales that fell to sea floor? 5.1 Stage 1: Mobile-scavenger stage 5.2 Stage 2: Enrichment opportunist stage 5.3 Stage 3: Sulphophilic (sulphur-loving) stage 6 What is the significance of whale falls? 7 References What is a Whale Fall? Whales are the largest living organisms living on the surface of Earth. An adult blue whale weighs up to 173 tonnes with 30 meters in length. [1] When a whale dies in the ocean, its body usually falls to the sea floor and becomes a huge source of organic matter for the animals that live there. This is known as a Whale fall. Animal communities forms around the whale carcass called Whale fall communities. What happens to whales when they die? Three things can happen to dead bodies of whal...
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Brittle stars stealing from Jelly fishes!

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This article was originally posted at Amazing Zoology . View original article at http://amzoo.in/60j2a Image Credit: Andrea Marshall Occassionally, brittle stars are seen in the body of jelly fishes. They are usually present under the bell or on the oral arms. But they are not seen on jelly fishes in cold to temperate waters. Interesting fact is the food sources of brittle stars seems to be mesozooplanktons and they were never observed with arms out in water. Then, where do they get their food from? They take food directly from the mouth or the oral arms of the jelly fish. It means, they are stealing food from the jellyfish which are pelagic predators. There are several reports of other brittle stars moving down into the feeding arms or near the mouth and stealing food directly from the host. So these are called as KLEPTOPARASITES. Suggested Reading 1. Ingram BA, Pitt KA, Barnes P. Stable isotopes reveal a potential kleptoparasitic relationship between an ophiuroid (Ophiocnemis marmora...
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