Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sponges rank among the oldest known animals on Earth, yet scientists have struggled to pinpoint exactly when they first appeared.

From Science Daily • Feb. 28, 2026

Sponges lack both muscle and nerve cells, which all other animals, including comb jellies, have.

From Science Magazine • May 17, 2023

Sponges already had genes that resembled those for neurotransmitters; perhaps these were used for cell-to-cell communication long before the evolution of neurons, with their specialized shape and function.

From Scientific American • May 17, 2023

Sponges would make sense as the oldest animal.

From New York Times • May 17, 2023

Sponges were not only sold in great numbers, but they were also traded for goods or used as money.

From "Shipwrecked!" by Martin W. Sandler