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Ana sagar lake in Ajmer, Rajasthan, against the backdrop of the Aravalli mountain ranges. (AP Photo/Rajesh Kumar Singh)

Reading the Aravallis through maps and law [Analysis]

Sachin Pernacca Sashidhar, Milind Bunyan, Kripa M.K., Abi T. Vanak 9 Feb 2026

A saltwater crocodile. An island’s size not only affects the intensity of competition among species for limiting resources, but also the activity level and rate of metabolism in its dominant predators. Reptilian predators such as saltwater crocodile in the Andaman and Nicobar Islands is an example. Representative image by Richard.Fisher via Wikimedia Commons (CC BY 2.0).

Development projects in small and micro islands need careful planning [Commentary]

R.J. Ranjit Daniels 2 Feb 2026

Bioinvasions are a global threat to ecosystems, says IPBES report

Arathi Menon 21 Sep 2023

Ecosystem-based adaptation takes nature-based, people-centric approach to agriculture

Arathi Menon 9 Aug 2023

Fishermen engaged in seine net fishing at the Pulicat lagoon. Photo by Xavier Benedict/ AARDE Foundation.

Red listing the Pulicat lagoon may help protect the ecosystem, say researchers

Arathi Menon 4 May 2023

African catfish in Bengaluru.African catfish find it easier to thrive in new and harsh environments. Photo by Yercaud Elango/ Wikimedia Commons.

Invasive freshwater fish are thriving in the Ganges, aided by increasing temperatures

Sneha Mahale 6 Jun 2022

[Commentary] Ecological civilisation and the new global biodiversity framework

Balakrishna Pisupati 6 Apr 2020