What distinct feature do the toes of a green salamander have?

The distinct feature of the toes of a green salamander is that they are squared-tipped and expanded. This anatomical adaptation helps the salamander navigate its arboreal environment, allowing it to gain a better grip on surfaces like tree bark and leaves. The wider, squared tips provide a larger surface area, which is beneficial for clinging to vertical surfaces, helping the salamander maintain stability and mobility in its natural habitat.

The description of other options does not align with the actual characteristics of green salamander toes. Long and thin toes would not provide the necessary grip on surfaces, and webbed toes, while advantageous for swimming creatures, are not a feature of green salamanders, which are more involved in climbing. Similarly, pointed and narrow toes lack the necessary surface area to facilitate effective clinging or climbing, making the squared-tipped and expanded toes a distinct advantage in their ecological niche.