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Molecular biologists prune branches from the animal family tree

Researchers have reclassified animals into three primary evolutionary lines based on new molecular evidence, including a study of the Hox gene family. The findings support earlier genetic investigations and provide insight into animal development and evolution, with implications for our understanding of life's origins.

Common genes form new family tree for animals

A new study reveals a common genetic theme in three distinct animal species, supporting a simplified three-limbed tree of life for nearly all animals. The findings provide powerful evidence to place mollusks to humans on the same evolutionary tree.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Fossil Evidence Of Worms Over One Billion Years Old Reported In Science

Researchers have found evidence of ancient worm-like animals in rocks dating back 1.1 billion years, challenging the traditional timeline for multicellular life. The discovery suggests that animal body plans changed little before the Cambrian period, and that soft-bodied animals may have existed even earlier.