age-of-reptiles
Animals

Mesozoic Era – the Age of Reptiles.

The Mesozoic Era spans from about 252 million years ago to about 66 million years ago that means it began roughly around the time of the end-Permian extinction. The amphibians were declining after a long period of supremacy among the animals and the reptiles were gradually replacing them. Many of them became very large fearsome and came to dominate the animal life practically everywhere and spread into all habitats. For this reason, the Mesozoic era is also called the Age of Reptiles or the Age of Dinosaurs. […]

Sexual-Reproduction-in-Protists
Microbes
No Picture
Biology
roles-of-free-radicals-aging
Health

Free Radicals: What is their role in making us old?

From the beginning of time, humans have always been concerned about aging and have tried every bit of ability to defy this process. Many of us believe that aging results from the repetitive damage caused to our body cells due to radicals produced by the everyday metabolic activities that usually sustain our life also create “metabolic stress”. But, recent studies are proving this theory of aging wrong, and are saying that so called – “evil radicals” are not so evil. […]

bacterial-conjugation
Biology