Ezequiel M. Marzinelli

The seagrass Zostera muelleri in Lake Macquarie, New South Wales, Australia. Renske Jongen

May 5, 2026

Warming seas can threaten the hidden relationship that supports seagrass meadows

Renske Jongen, University of Sydney; Ezequiel M. Marzinelli, University of Sydney, and Paul Gribben, UNSW

Seagrasses are often overlooked, but they are among the most important coastal habitats on Earth.

Dentes de tubarões jovens são mais finos, com projeções para agarrar presas pequenas e escorregadias, como peixes e lulas, mas depois projeções desaparecem e eles se tornam mais largos, grossos e serrilhados para cortar ossos e carne de mamíferos marinhos, como focas e baleias. Ken Bondy/iNaturalist

February 12, 2026

Tubarões‑brancos mudam formato de dentes à medida que crescem e envelhecem

Emily Hunt, University of Sydney; David Raubenheimer, University of Sydney, and Ezequiel M. Marzinelli, University of Sydney

Os dentes dos tubarões-brancos não são armas estáticas, mas registros vivos da mudança no estilo de vida e dieta dos animais.

Ken Bondy/iNaturalist

January 27, 2026

Great white sharks grow a whole new kind of tooth for slicing bone as they age

Emily Hunt, University of Sydney; David Raubenheimer, University of Sydney, and Ezequiel M. Marzinelli, University of Sydney

The teeth of white sharks are not static weapons but living records of a shark’s changing lifestyle.

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Warming seas can threaten the hidden relationship that supports seagrass meadows

Tubarões‑brancos mudam formato de dentes à medida que crescem e envelhecem

Great white sharks grow a whole new kind of tooth for slicing bone as they age

Contact Ezequiel for