Our power, our planet: Five Frontiers articles for Earth Day

Earth Day, an annual event to show support for the protection of the Earth and what’s living on it, is almost upon us. To celebrate, we’re highlighting five recently published Frontiers articles on energy, ecosystems, and the environment.

Tadpoles try to flee dangerous virus in their pond by growing much faster than normal

Researchers from the US studied the plasticity in growth and development of wood frog larvae in response to the emerging disease ranavirus, which can kill off the entire population of ponds. They showed that tadpoles in infected ponds speed up the rate of growth and progression through the immature stages. They hypothesize that this plasticity boosts their physical condition and hence immune response to ranavirus, and allows them to metamorphose earlier and escape infection.

Life sciences

28 Nov 2023

Female toxin-producing newts are surprisingly more poisonous than males

Newts of the genus Taricha produce tetrodotoxin, a powerful neurotoxin. Now, new research has found that females have consistently higher levels of toxins than males.

Environment

29 Mar 2023

Lizards at US Army installation are stress eating during flyovers

By Mischa Dijkstra, Frontiers science writer Colorado checkered whiptail, Aspidoscelis neotesselata. Image credit: Carina Kusaka Scientists studied the response of an uncommon asexual lizard, the Colorado checkered whiptail, to anthropogenic noise at the military installation Fort Carson. They compared the lizard’s behavior between dates with and without flyovers by military aircraft. On flyover dates, the lizards showed a physiological stress response and spent more time eating and less time moving. These results suggest that the lizards deal with noise pollution by eating more to maintain the energy levels. Lizards may be small, with only a single hearing bonelet compared to our three, and without earflaps, but their hearing is typically good. Most lizards can hear frequencies between 100 and 5,000 Hz (although they are most sensitive between 400 and 1,500 Hz), compared to between 20 and 20,000 Hz in humans. So how do lizards react to noise pollution? Here, scientists studied the impact of noise from low-flying military aircraft on the behavior and well-being of an uncommon lizard, the Colorado checkered whiptail (Aspidoscelis neotesselatus). This was done at the Fort Carson US military Installation near Colorado Springs, where Apache, Chinook, and Blackhawk helicopters regularly fly over, and occasionally transport aircraft […]