See how non-enzymatic RNA replicates

See how non-enzymatic RNA replicates

In the absence of RNA – or protein-based replication machinery – it is possible for RNA to replicate in a non-enzymatic, template-directed manner. In this animation, the nascent RNA strand is formed from activated nucleotides by Watson-Crick base pairing. Nov 2, 2016
Poaching: Tragic decline of the African elephant population in numbers

Poaching: Tragic decline of the African elephant population in numbers

There was a 30% decline in African savanna elephants from 2007 and 2014. Forest elephants suffered a 65% decline between 2002 and 2013. Poaching is the main threat to African elephants today. Despite an international ban on ivory in 1989, conservationists say we entered a second poaching crisis in 2009 as many Asian economies have grown – thus increasing the demand for ivory. Nov 1, 2016