He typically signs his work with a black butterfly. “It’s interesting ... then meticulously hand-cutting stencils to create painted portraits of the cyclists. Stenciling is Westergard ...

Glue the triangles together with a glue dot in the centre of each. Spell out a message on the front of your card with letter stickers. How to make an elegant Mother's Day card with stencils and lace ...

Wang Rongjiang's research group at the School of Life Sciences and the Center for Ecological Research of Peking University has published a study on the diversity pattern of butterfly species in China.