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300-million-year-old fish resembles a sturgeon but took a different evolutionary path(图)
300-million-year-old resembles sturgeon different evolutionary path
2020/7/3
Sturgeon, long-lived, bottom-dwelling fish, are often described as living fossils. Their form has remained relatively constant, despite hundreds of millions of years of evolution.In a National Sc...
Shaking up the fish family tree:'Living fossil' not as old as we thought(图)
shaking up the fish family tree living fossil as old as we thought
2017/9/19
Polypterids are weird and puzzling African fish that have perplexed biologists since they were discovered during Napoleon's expedition to Egypt in the late 1700s.Often called living fossils, these eel...
Vision,not limbs,led fish onto land 385 million years ago
Vision not limbs led fish onto land 385 million years ago
2017/3/30
EVANSTON - A provocative new Northwestern University and Claremont McKenna, Scripps and Pitzer colleges study suggests it was the power of the eyes and not the limbs that first led our ancient aquatic...
Landslide-dammed paleolake perturbs marine sedimentation and drives genetic change in anadromous fish
Landslide-dammed paleolake perturbs marine sedimentation drives genetic change anadromous fish
2014/4/8
Large bedrock landslides have been shown to modulate rates and processes of river activity by forming dams, forcing upstream aggradation of water and sediment, and generating catastrophic outburst flo...
Meemannia eos , a basal sarcopterygian fish from the Lower Devonian of China – expanded description and significance
Lower Devonian of China – expanded description significance Meemannia eos
2014/3/26
Additional morphological and histological features of a stem-group sarcopterygian fish Meemannia eos (Zhu et
al. 2006) are provided, including dermal bone features, endocranial structures in the o...