Home Authors Posts by Josin Tharian

Josin Tharian

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Assistant Professor of Zoology by profession.

Ancestor of all placental mammals was an insect eater

Placental mammals were early insectivores and lived along with dinosaurs in the Late cretaceous. During cretaceous mass extinction, dinosaurs became extinct and opened up lots of dietary niches. The ancestral insectivore radiated out into all the niches and had 5 chitinase genes. But those who got adapted for other diets lost their chitinase genes through accumulation of various mutations. These gene remnants passed on to all mammals now exist, as pseudo genes.

This ancient bird hatchling preserved in amber provides insights into early bird evolution

Scientists have recently made an incredible discovery of a piece of amber that contained well preserved remains of an alomost complete bird hatchling. The discovery was made from Burma.

What makes poison dart frog resistant to their own poison?

Poison dart frogs store Batrachotoxin, a steroidal alkaloid toxin in their skin glands. A single amino acid substitution is responsible for the resistance to their on poison in these frogs.

New ant species discovered with a metal reinforced mouth parts

These predatory ants must have fed on soft bodied animals. When they encounter their prey, their clypeal hairs touch its body. This triggers the sudden closure of mandibles in upward direction. Pointed mandibles now pierce the prey’s body. Using the channels in mandibles, these ants can suck haemolymph (blood) out of the body of prey.

Top 20 Zoology blogs for students and educators

Useful selection of top zoology blogs for students and teachers of zoology. These handpicked blogs range from General zoology, Evolution, Marine biology, cryptozoology and many more. Any student of zoology will be interested in this list.

This deer was shot several years prior and when they dressed it out they...

Take a close look at this, absolutely amazing! This deer was shot with an arrow years ago. Lucky, the shot was not fatal, the...

Exploring the animals of Underwater Universe – Infographic

In each zones of sea floor, the living organisms are also extremely different. This infographic well provide an overview of fauna of under water universe.

Tentacles and Beaks of Cephalopods

A cephalopod is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet"). These exclusively marine animals are characterized by bilateral body...

Giraffe, the most interesting animal on earth – Infographic

© CECE PASCUAL See also Giraffe Neck Anatomy Giraffe Species of the World

INFO OF THE DAY

Dancers on a rope!

‘When mantises are afraid of something, they raise their arms and spread their wings. It’s their normal defensive behaviour. Winning shot in Nature section, from Siena International Photography Awards 2015. Shot by Hasan Baglar.

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