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In an unprecedented study, scientists from the University of Florida (UF) have delved into the development of hammerhead sharks' skulls, uncovering the process behind their iconic hammer-like shape at the embryonic stage.

Led by UF professor Gareth Fraser, the study focussed on bonnetheads, the smallest among the hammerhead shark species. The species’ abundance in the Gulf of Mexico and the Atlantic Ocean, along with their near-shore presence, made them ideal subjects for the study.

Coral reefs are essential for marine biodiversity and climate resilience, supporting at least a quarter of marine species and offering ecosystem services worth up to US$9.9 trillion annually. More than a billion people, including vulnerable coastal communities, depend on them for their livelihoods.

Today, these vital ecosystems are under threat due to the climate crisis and human activities, and time is running out to protect them.

The Amazon River Basin, known for its rich biodiversity, has witnessed a tragic event. Over the past week, 120 river dolphin carcasses have been discovered floating in its tributaries. Experts suspect that the severe drought and extreme heat are the culprits behind this mass mortality.

Dolphin Discovery

The carcasses of these dolphins were discovered floating in a tributary of the Amazon River in Brazil. The Mamiraua Institute, a renowned research group, reported that two additional dolphins were found dead near Tefe Lake.