New research suggests crocodiles descended from warm-blooded, active archosaurs rather than cold-blooded ancestors. Fossil evidence from 81 species indicates both crocodile and dinosaur-bird lineages had high metabolic rates before crocodiles evolved cold-blooded metabolisms around 66 million years ago
Larger species face higher cancer risks but those that reached that size rapidly evolved mechanisms for mitigating it, such as lower mutation rates or enhanced DNA repair mechanisms
The journey of Earth towards a colourful world began with the evolution of vision, which initially developed to distinguish light from dark over 600 million years ago
By Pramod K Nayar Charles Darwin enabled (or troubled) us to rethink our origins — without asking, of course, whether the apes were even impressed by this connection — and our lines of descent. Theological and mythic creation stories apart, this evolutionary theory remains the single most influential account of life on earth. This story […]
New Delhi: Is evolution a rapid process, happening “all around us all the time”? Evolutionists point to an example of the horn size of Alberta bighorn sheep that has decreased due to trophy hunting. They say wild populations must continuously adapt to environmental changes or risk extinction. For more than 50 years, scientists have described […]
Acoustic developmental programming occurs when a sound informs embryos about the environment they'll encounter postnatally and changes their development to better suit this environment
Just like how the hairs on your arm can feel a soft breeze blowing or a spider crawling on you, whiskers on a tiger’s face and chin give it messages about what is going on around him or her.
