Cover credits (from left to right):
Fingerprint detail by Frettie. Eaten oak leaf by USGS Native Bee Inventory and Monitoring Laboratory. Tree branches by Hermux. Bees on sunflower by Onderwijsgek. Simulated lightning by Fir0002/Flagstaffotos. Mandelbulb by Soler97. Mixed cloud formations over Karthaus Township in Clearfield County by Nicholas Tonelli. Romanesco broccoli by Kent Wang. Spiderweb by Josef F Stuefer. Diminishing lines on a sand dune by Asmin Bhar. Brood foundation with bees by Theroadislong. Frosted glass by James. Fibonacci leaves by sigusr. Underside of a taro leaf by Avenue. Mushroom lamella (close-up) by Lee Cannon. King protea by Winfried Bruenken. Rain on grass by Adrian Benko. Ripple effect on water by Sergiu Bacioiu. Supernumerary rainbow by Andrew Dunn. Helix nebula by NASA/JPL-Caltech. Tree rings in Hillsborough forest by Albert Bridge. Tree branches by Debivort. Washington coast by John Murphy. Newly planted grass by Luke. Fingerprint detail (close-up) by Frettie. Ripening Cyclamen coum seeds by Dominicus Johannes Bergsma. Autumn impression with acorns by Guido Gerding. Echinocactus grusonii by Laughlin Elkind. Spiderweb (close-up) by Josef F Stuefer. Lightning over Schaffhausen and Kohlfirst by Hansueli Krapf. Cyclone Catarina from the ISS by NASA. Human iris by Mattis 2412. Mixed cloud formations over Karthaus Township in Clearfield County (close-up) by Nicholas Tonelli. Surface waves by Roger McLassus.Mushroom lamella by Lee Cannon. Dune types in the Eastern Algeria by NASA.

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