Aubrey L. Zerkle

Aug 5, 2024 | newsbreak.com | Aubrey L. Zerkle

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Jul 30, 2024 | eos.org | Aubrey L. Zerkle

If water is the key to life, then oxygen is the key to animal life. All animals breathe oxygen. Despite decades of research, however, scientists still don’t know when Earth’s atmosphere held enough free oxygen to support the planet’s early animals. Most geologists agree that oxygen first accumulated in the atmosphere around 2.4 billion years ago. But they don’t agree on how much there was at that time or if it was enough for animals to thrive.

Feb 12, 2024 | newsbreak.com | Aubrey L. Zerkle

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Dec 5, 2023 | eos.org | Adityarup Chakravorty |Aubrey L. Zerkle |Sarah Garton Stanley |Ed Struzik

Posted inNews While digging for food on estuary bottoms, rays push around literally tons of sediment, changing their habitat in profound ways.

Feb 9, 2023 | newsbreak.com | Aubrey L. Zerkle

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