A green toad floats quietly in the water with its throat fully inflated, forming a visible vocal sac. While the rest of its body remains still, the expanded throat indicates active calling behavior.

Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...

During eukaryotic gene expression, different classes of RNA molecules are synthesized in the nucleus and are exported to the cytoplasm by mobile export receptors. Export of tRNA requires a specific ...

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