Microscopic image of <n>Plant cells</n>, titled <n>Hidden World</n>.

Kelp forest captured by photographer <n>Helen Walne</n>.

Digital artwork by <n>Sofia Crespo</n>, 2020.

The <n>Strawberry Squid</n>, photographed by <n>Paul Caiger</n> for the <n>Woods Hole Oceanographic Institution</n>.

<n>Frösche in Bauch-und Rückenlage</n>, an 1896 X-ray by <n>Josef Maria Eder</n> and <n>Eduard Valenta</n>.

A microscopic diatom, a single-celled algae with an intricate silica cell wall. Photo by <n>Jan Rosenboom</n>.

A micrograph of various <n>Diatoms</n>, a major group of algae.

A <n>Nautilus shell</n> photographed by <n>Tom Brakefield</n>.

A <n>Hydroid</n>, an animal related to jellyfish, photographed in Indonesia.

Photo by <n>Matty Smith</n> of a <n>Portuguese man o' war</n> off the coast of New South Wales, Australia.

62 Breathtaking Photos Taken Between Two Worlds

A composition of seashells, including a <n>Nautilus shell</n>, by <n>Karolina Grabowska</n>.

A <n>Diamond squid</n> photographed by <n>TOBIAS FRIEDRICH</n> during a blackwater dive in Anilao, Philippines.

Guide me through the dark by artist <n>Julia Soboleva</n>.

A digital illustration of a <n>Neuronal Synapse</n>.

A 2011 photograph by <n>Caitlin Prof</n> of a <n>Paenibacillus dendritiformis</n> bacterial colony.