Ernst Haeckel Crewneck Sweatshirts

A variety of colorful mosses, grasses and other exotic tropical plants in a rainforest jungle by Ernst Haeckel.

A variety of underwater ocean animals including sand dollars, sea urchins and sea cucumbers aka echinidea or symmetrical marine invertebrates by Ernst Haeckel

Old public domain image of Ernst Haeckel's Kunstformen der Natur Aspidonia Limulidae from 1904 that I modified, colored, cutout, and shadowed to make a great image for a shirt. Includes horseshoe crabs, sea scorpion, trilobites, etc

A variety of seashells, fish and seahorses in the ocean by Ernst Haeckel. Teleostei are ray-finned fish with their name coming from Greek for complete bone. This species of fish dates back to the ancient dinosaurs and the Triassic period.

Ernst Haeckel Hummingbirds Vintage Bird Chart Illustration The 99th plate from Ernst Haeckel's natural history book 'Kunstformen der Natur' (Art Forms In Nature) of 1904, depicting a variety of hummingbirds classified as Trochilidae. Victorian era science illustration in lush colors.

Kunstformen der Natur (1904), plate 54: Gamochonia. This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. I have edited this image.

Vintage illustration biology nature design by Ernst Haeckel. A variety of creepy crawlie spooky spiders or arachnids.

Vintage illustration botany nature design by Ernst Haeckel featuring a black and white design with a variety of lichen.

A variety of colorful invertebrate filter feeders animals (ascidia) often found in the oceans.

Ernst Haeckel.

A variety of lizards in a desert setting by Ernst Haeckel.

Ernst Haeckel Kunstformen der Natur (1904), plate 42: Ostraciontes The author died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

This is my (Zeljkica) original image. I drew it by hand with ink pencil and it's from my imagination. It's inspired by abstract creatures, flora, fauna, faces and Ernst Haeckel. :)

Old public domain image of Ernst Haeckel's Kunstformen der Natur Lacertilia from 1904 that I modified, colored, cutout, and shadowed to make a great image for a shirt. Includes chameleon, frilled lizard, flying lizard, flying gecko, texas horned lizard, thorny devil, etc.

Ernst Haeckel's sea slugs for your sticking pleasure. Find more cool stickers at www.aeolia.redbubble.com

A color plate illustrating Nudibranchia from Ernst Haeckel's ''Kunstformen der Natur'' (1899). The author died in 1919, so this work is in the public domain in its country of origin and other countries. I have edited this image.

A variety of exotic frogs and toads climbing on trees in a tropical rainforest jungle at night.

Ernst Haeckel died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

Exotic colorful hummingbirds in a tropical rainforest jungle flying among the trees with one bird is sitting on a nest with eggs by Ernst Haeckel

Vintage illustration nature marine life biology design by Ernst Haeckel featuring a variety of giant squid and octopi animals commonly found in the ocean waters.

Ernst Haeckel died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

Public Domain. License CC0 1.0 Universal (CC0 1.0) Public Domain Dedication Kolibris are some of the most fascinating and beautiful creatures on Earth. And with Trochilidae-Kolibris from Kunstformen der Natur, you can bring a little bit of that natural wonder into your home. This stunning piece is a reproduction of Ernst Haeckel's iconic artwork, which depicts dozens of different kolibri species in incredible detail. The vibrant colors and intricate patterns of these tiny birds are truly a sight to behold. Not only is Trochilidae-Kolibris from Kunstformen der Natur a work of art, it's also a great conversation starter. Hang it in your living room or office and watch as your guests marvel at

A variety of exotic ferns in a jungle. Ferns are vascular plants that have neither seeds nor flowers, they reproduce via spores.

A variety of colorful animals, segmented worms that live deep in the waters of the oceans.

A color plate illustrating Ascidiacea from Ernst Haeckel’s ‘’Kunstformen der Natur’’ (1899). I have edited this image.

The author died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923. This imaged has been edited by me.

An artificial intelligence art piece that mixes Ernst Haeckel's and Rembrandt's styles.

A design adapted from a scientific illustration by Ernst Haeckel, 1834 - 1919. This German Biologist created these beautiful, symmetrical, organized art forms from his studies in marine biology and featured them in his publication, 'Art Forms Of Nature' in 1899. Shown here is his study of Amoeba.

a repeating jellyfish pattern all tangled up

Vintage illustration marine life biology design by Ernst Haeckel featuring a variety of colorful jellyfish in the ocean.

Ernst Haeckel, botanical, vintage, ferns, palm trees, rainforest

Ernst Haeckel Kunstformen der Natur (1904), plate 8: Discomedusae - I have edited this image. The author died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

A color plate illustrating Ascidiacea from Ernst Haeckel’s ‘’Kunstformen der Natur’’ (1899). I have edited this image.

Ernst Haeckel died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

Ernst Haeckel died in 1919, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 95 years or less. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

Ernst Haeckel's sea slugs for your sticking pleasure. Find more cool stickers at www.aeolia.redbubble.com