Steve Downer / Timelapse of Sycamore tree (Acer pseudoplatanus) leaves developing, UK. March. Controlled conditions.

Jabruson / Long-tailed Pangolin (Uromanis tetradactyla) unfurling itself from protective posture, close up of scales, Lokoue Bai. Odzala-Kokoua National Park, Democratic Republic of Congo.

Jabruson / Long-tailed Pangolin (Uromanis tetradactyla) unfurling itself from protective posture, Lokoue Bai. Odzala-Kokoua National Park, Democratic Republic of Congo.

Niall Benvie / MYN / Unfurling single frond of Bracken (Pteridium aquilinum) Scotland, UK

Nigel Cattlin / Sundew (Drosera binata dichotoma) leaf with sticky glandular trichomes / hairs, insectivorous plant.

Nigel Cattlin / Sundew (Drosera binata dichotoma), close-up of Fly (Diptera) stuck to sticky glandular trichomes / hairs of leaf.

Staffan Widstrand / Wild Wonders of China / Close up of Fern unfurling at Sudian, Tongbiguan Nature Reserve, Dehong prefecture, Yunnan province, China, October.

Steve Downer / Timelapse of Sycamore tree (Acer pseudoplatanus) leaves developing, UK. March. Controlled conditions.

Adrian Davies / Tree fern (Cyathea princeps) frond unfurling, cultivated specimen, occurs in Mexico / Central America.

Nick Upton / Hart's-tongue fern (Phyllitis / Asplenium scolopendrium) leaves unfurling, Wiltshire, UK, April.

Nick Upton / Hart's-tongue fern (Phyllitis / Asplenium scolopendrium) leaves unfurling, Wiltshire, UK, April