This is a preview. Log in through your library . Abstract How the radial body plan of echinoderms is related to the bilateral body plan of their deuterostome relatives, the hemichordates and the ...

Missouri’s most common fossil is an invertebrate, the crinoid, also known as “sea lilies”. Despite the name, they’re more ...

Starfishlike brittle stars have five thin arms and no central brain, but even so, they move in a carefully coordinated fashion similar to four-limbed animals (including humans). A new analysis delves ...

(a) TEM image of the ultra-fine NiS nanorods with diameter of ~2.7 nm. (b) ADF-STEM image and (c) corresponding FFT pattern of the ultra-fine nanorod in radial direction. (d) ADF-STEM image and (e) ...

Tsukuba, Japan—In nature, flowers may share morphological features, even across distantly related species. Bilateral symmetry is one such feature found in flowers of various taxa, such as orchids and ...

No two snowflakes are alike, but do all have one thing in common — perfect sixfold radial symmetry. It sounds complicated, but all that really means is if you divided any snowflake into six equal ...