Animal Facts — Short, Verified & Surprising

Field Notes

Animal Facts

Short, verified facts pulled from our research notes while building animal profiles — the kind of details that don’t always make it into a full article but are too interesting to leave out.

FIELD NOTE No. 001

An octopus has three hearts and blue, copper-based blood.

FIELD NOTE No. 002

A group of flamingos is called a “flamboyance.”

FIELD NOTE No. 003

Elephants are the only mammals that can’t jump.

FIELD NOTE No. 004

A shrimp’s heart is located in its head.

FIELD NOTE No. 005

Honey never spoils — edible honey has been found in 3,000-year-old tombs.

FIELD NOTE No. 006

A snail can sleep for up to three years.

FIELD NOTE No. 007

Cows have best friends and become stressed when separated from them.

FIELD NOTE No. 008

A group of owls is called a “parliament.”

FIELD NOTE No. 009

Sea otters hold hands while sleeping so they don’t drift apart.

FIELD NOTE No. 010

The heart of a blue whale is roughly the size of a small car.

FIELD NOTE No. 011

Butterflies taste with their feet.

FIELD NOTE No. 012

Wombat droppings are cube-shaped.

FIELD NOTE No. 013

A group of lions is called a “pride,” while a group of tigers is an “ambush.”

FIELD NOTE No. 014

Giraffes only need 5 to 30 minutes of sleep in a 24-hour period.

FIELD NOTE No. 015

A dolphin’s signature whistle functions much like a name.

FIELD NOTE No. 016

Polar bear fur is not actually white — it’s translucent, scattering light to appear white.

FIELD NOTE No. 017

Some species of jellyfish are biologically immortal, able to revert to an earlier life stage.

FIELD NOTE No. 018

A group of crows is called a “murder.”

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