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 ...

Some beetles are born with an imbalance rare in nature: They only have one testicle. A new study found that three major groups of beetles, all of the carabid family, lack the usual second testicle.

PREMISE OF THE STUDY: The evolutionary shift from radial to bilateral symmetry in flowers is generally associated with the evolution of low flower-size variation. This phenomenon supports the ...

A new study of expression patterns of key developmental genes in an anemone indicates that the phylum Cnidaria has been unfairly excluded from the 'family' of bilaterally symmetrical animals ...

Geologists have discovered the first ancestor on the family tree that contains most animals today, including humans. The wormlike creature, Ikaria wariootia, is the earliest bilaterian, or organism ...

This book is the second volume of two books about sea urchins (echinoids) since 1953 (Th. Mortensen). The detailed and coloured illustrated descriptions enable the reader to identify all species ...

Professor Paul McGreevy is an Honorary Fellow of the International Society for Equitation Science and a life member of the RSPCA NSW. He has received funding from the Australian Research Council for ...