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Tadpoles

All articles tagged with #tadpoles

science1 year ago

World's Oldest Tadpole Unearthed: A Jurassic Giant

A 161-million-year-old fossilized tadpole discovered in Patagonia has been identified as the oldest known tadpole, predating the previous record-holder by 21 million years. This tadpole, belonging to the species Notobatrachus degiustoi, was unusually large, measuring over six inches, and showed signs of both infancy and adulthood, indicating early metamorphosis in ancient frog ancestors. The discovery highlights the long history of amphibian development and the enduring nature of adolescent awkwardness.

via Defector|
#fossils#metamorphosis#paleontology
science1 year ago

Jurassic Giant: World's Oldest Tadpole Unearthed

Researchers in Argentina have discovered the world's oldest-known tadpole fossil, dating back 161 million years to the Jurassic period. The tadpole, belonging to a large frog species, was found in Patagonia and is remarkably well-preserved, with some soft tissues visible. This discovery provides insights into the development of frogs and suggests that tadpoles have remained largely unchanged over millions of years. The study, led by biologist Mariana Chuliver, highlights the significance of these findings in understanding ancient amphibian life.

via VOA Learning English|
#argentina#fossils#jurassic
biology2 years ago

"From Tadpoles to Toads: A Father's Journey"

Male golden rocket frogs in Guyana's Kaieteur Falls fiercely defend bromeliads within their territory, which serve as both shelter and nursery for their offspring. A new study reveals that the frogs choose bromeliads with the nicest pools, where tadpoles are more likely to thrive. Researchers measured the quality of each pool by analyzing factors such as volume, dissolved oxygen, turbidity, and the presence of strange mucilage. The study also found that male frogs transport larger, more adult tadpoles on their backs, suggesting they may monitor their offspring for extended periods and relocate them if necessary.

via Defector|
#biology#bromeliads#golden-rocket-frogs