If you're passionate about ancient life, love a good fossil find, or simply appreciate science with a side of sass, this shirt is for you. Featuring the witty phrase “It’s okay if you don’t like paleontology — it’s kind of a smart people thing anyway,” this paleontology t-shirt perfectly combines humor, brainpower, and a love for the prehistoric. It’s a clever and confident way to show the world that understanding Earth’s distant past isn’t for everyone… just the brilliant ones.

With colorful, vintage-style typography and fun illustrations of dig tools and fossil skeletons, this shirt is as eye-catching as it is clever. Whether you're a student, researcher, museum volunteer, or just a total dino nerd, this tee makes a bold (and hilarious) statement. It’s ideal for wearing to science fairs, university lectures, fossil digs, casual outings—or any time you want to celebrate your love for paleontology and the intellect it takes to study it.

Made from comfortable materials and available in multiple sizes, color, and cuts, this t-shirt also makes a fantastic gift for paleontology majors, geologists, or anyone who thinks ancient bones are just about the coolest thing ever unearthed. Because let’s be honest—rocks are cool, but bones in rocks? Even cooler.

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Science, simplicity, and historic significance come together in this elegant and thought-provoking Darwin I Think evolution t-shirt. Featuring Charles Darwin’s original 1837 sketch of the tree of life, complete with the handwritten phrase “I think,” this shirt pays tribute to one of the most important scientific ideas ever conceived—the theory of evolution by natural selection.

Printed in minimalist black ink on a crisp white tee, the design highlights the branching diagram that helped shape the future of biology and how we understand life on Earth. It’s a perfect gift for biologists, science teachers, evolution enthusiasts, and history-of-science nerds, or anyone who appreciates the profound simplicity of a revolutionary idea. Whether you wear it to class, the lab, or just to spark a few conversations at the coffee shop, this shirt reminds the world that great ideas often start with two simple words: I think.

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Calling all math enthusiasts! Whether you're a professional mathematician, a dedicated student, or just someone who loves numbers, this funny math lover sweatshirt is the perfect way to express your passion for problem-solving. With its playful design featuring a calculator displaying "LOVE" and the bold statement "I Love Math," this piece is a must-have for anyone who enjoys geeking out over equations, formulas, and calculations.

This sweatshirt isn’t just about the math – it’s also about comfort. Made from soft, cozy material, it’s perfect for chilly classrooms, study sessions, or casual outings. The vibrant blue color and whimsical design make it a standout addition to your wardrobe, while the lightweight fabric ensures all-day wearability.

This sweatshirt makes a fantastic gift for the math lover in your life. Whether it’s for a teacher who inspires their students, a friend who can’t stop talking about calculus, or yourself, this design is sure to bring a smile to anyone who appreciates the beauty of numbers.

Pair it with jeans for a casual look, or throw it on while solving puzzles and equations at home. Let the world know you’re proud to be part of the math-loving community with this unique and fun sweatshirt.

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For engineers and science geeks alike, this clever t-shirt is the ultimate conversation starter. Combining wit and a touch of sarcasm, this design captures the essence of the engineering mind. Whether you're solving complex problems, fueling up with coffee, or dispensing sarcasm as a by-product of genius, this shirt says it all.

The design features a flowchart highlighting the engineering process in its simplest (and funniest) form. Starting with a problem and coffee as essential inputs, the flow leads to a solution, with a side output of sarcasm—something every engineer can relate to. It's a smart and humorous way to celebrate the brilliance (and caffeine addiction) of problem-solvers.

Made from comfortable cotton fabric, this shirt is not only stylish but also perfect for wearing during long work hours, science meetups, or casual outings. It’s a great gift for engineering students, STEM professionals, or anyone who loves geeking out with a sense of humor. Or use Zazzle's easy tools to transfer this funny design to a different apparel style or gift item.

Add this to your collection of science-themed tees and let the world know what it really takes to be an engineer: a sharp mind, a lot of coffee, and a healthy dose of wit.

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If you've been geeking longer than most, you might be an Ancient Geek. This funny shirt uses the slogan in a stone-look font that might be taken to say "Ancient Greek" on first glance. This is a funny t-shirt gift idea for anyone who is part of a geek fandom or has a geeky job or lifestyle.

Shown on a unisex dark t-shirt in deep forest green, this text design can be purchased on a variety of other dark garment choices for adults and kids. Use Zazzle's tools to transfer the design to a different garment option, or another type of gift altogether. See some fun options below.

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This is funny for math geeks, or for the math-challenged people in a math lover's life. Bold collegiate-style text reads MATH but below the true meaning of the acronym is revealed "Mental Abuse To Humans".

This funny MATH t-shirt is great for math students, whether they struggle or succeed, or for math teachers and other professionals. Shown here on a black unisex shirt, you can get this funny design on variety of different shirt colors and cuts for kids or women. 

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