Rosemarie Trockel, Lucky Devil, 2012. Crab specimen, Perspex and textile, on view at Serpentine, London through April 7.

Peter Shire, Cherry Blossom Pink, 2006. Earthenware, glazes, stainless steel, 36 x 28 ½ x 19 in. On view at Santa Monica Museum of Art, Los Angeles through April 3.

Claire Nereim, Scale 6, 61x61x61 cm, on view at Cardi Black Box, Milan through April 15.

Robert Gober, Untitled, 2010-2011. Photo etching on copper, hand-printed on Shikoku paper, hand-distressed, 1.25 x 1.25 in, on view at Matthew Marks, Los Angeles through April 6.