In nature, colours are everywhere! Insects, birds, and mammals—all of them have vibrant colours and patterns on their bodies, which not only make them look pretty but play a role in behaviour and survival. Some use their kaleidoscopic looks to attract mates and stand out from their background; others prefer a dull look to blend into their surroundings and hide from predators. In some insects, like a few damselflies, males and females are differently coloured. Since the males mostly initiate mating in these insects, this difference in colours helps them to find a mate. A new study has now explored how colours impact the mating behaviour of a species of damselfly, Agriocnemis pygmaea.

Vast swathes of forests in many countries are being converted into agricultural lands to meet the ever-increasing food demand. India has increased its croplands by 56% from 1880 to 2010 while losing a whopping 26 million hectares of forest land during the same period.

As winter sets in over Punjab, one can hear the humdrum of hundreds of machines harvesting rice across lakhs of hectares of paddy fields. In Maharashtra, villages in Vidarbha lug their snowy cotton harvest to the market. Years ago, these landscapes were a sprawling array of forests, grasslands, wetlands and multiple crops cultivated on a shifting basis.

A study published in the journal Scientific Reports probes the evolutionary relationship between cheetahs.

In a recent study published in the Behavioral Ecology journal, Dr Anand Krishnan from the Indian Institute of Science Education and Research (IISER) Pune, studied birds’ singing activity and changes in the community structure of singing birds, before and after the arrival of migrant birds. The findings serve as a framework for monitoring rapidly-changing urban habitats through vocal birds and their singing behaviour. 

Study uses three-dimensional simulations to understand how flying insects navigate their terrain

Researchers from IIT Delhi have found that variations in temperature affect crop production and worker efficiency—two crucial pillars of India’s economy.

In a recent study, researchers from the Indian Institute of Science and Education Research, Kolkata, have investigated the nest architecture of a species of Indian ant, called Diacamma indicum.

A curious question in science is to know how these different types of lions evolved and how different are today’s lions from their ancestors. In a new study, an international team of researchers have tried to answer these questions by analysing the genes of extinct and living lions. The study, published in the Proceedings of the National Academy of Sciences (PNAS), finds that about 500,000 years ago, modern and now-extinct lions shared a common ancestor. Further, about 70,000 years ago, two different lineages of modern lions emerged. The findings also have implications on the conservation of the remaining lion population, which is just 10% of what it was a century ago.

Three new species of horned frogs discovered from the forests of Northeast India.