By Macquarie University
A new study by researchers at Macquarie University has shed light on why blue tongue lizards have such an outrageously coloured tongue, given that the vast majority of lizards have a regular pink tongue.
The study, just published in the journal Behavioral Ecology and Sociobiology, found that the colour is not accidental, and likely evolved as a protection against predators. Continue reading Why so blue? New research sheds light on why our iconic blue-tongue lizards have such colourful tongues
Why is a banana leaf a million times bigger than a common heather leaf? Why are leaves generally much larger in tropical jungles than in temperate forests and deserts? The textbooks say it’s a balance between water availability and overheating.
But it’s not that simple.
A global team of researchers, led by Associate Professor Ian Wright from Macquarie University, revealed that in much of the world the key limiting factor for leaf size is night temperature and the risk of frost damage to leaves.
Continue reading The mystery of leaf size solved