Tim Kovar imparts wisdom about tree climbing techniques and preservation to his students, who range from children to grown biologists.
With habitat loss already threatening koalas, the disease could increase death and infertility rates
Two sophisticated techniques could rescue the beloved American chestnut tree — but the riskier approach might work better
'Walking trees' guard the shores of Florida and thrive in the salty water
The Scienceline Newsletter
Sign up for regular updates.