The elephant's trunk and its uses have baffled scientists and public alike

Decoding how elephants use trunks 'like Swiss Army knife' could help build next-gen robots, say scientists

The elephant's trunk – quite a useful tool

Elephant Trunks: Is There Anything They Can't Do? - The New York Times

Happy Is an Elephant. Is She Also a Person? - The Atlantic

The elephant's trunk and its uses have baffled scientists and public alike

The Project Gutenberg eBook of The Ivory King, by Charles Frederick Holder.

Wallace, A. R. 1900. Studies scientific and social. London: Macmillan & Co., Ltd. And New York: The Macmillan Co. Volume 1.

ELEPHANT'S ENCYCLOPEDIA : TRUNK 2 Krabi Elephant House Sanctuary

Demystifying the Mysteries of Elephant Trunk Biomechanics, by MathWorks Editor, MathWorks

Do Elephants Have Souls? — The New Atlantis

Do Elephants Have Souls? — The New Atlantis

What is the use of an elephant trunk? - Quora

Do Elephants Have Souls? — The New Atlantis

Wild Beasts Project Gutenberg