Explore by topic, question, or idea. Find articles, reflections, videos, puzzles, and curiosity pathways gathered across the site.
Press Enter or select Search. A newly typed query starts globally; filters are applied only through the visible rail.
2 results for “blood brain barrier”
- The Perpetually Curious! › Canonical › Botanical WondersArticle
🍊 The Citrus Family Tree: Tracing the Roots of Oranges, Lemons, Limes, and Grapefruit
From section: 🎨 The colors of citrus: why fruits turn green, yellow, orange, or redBlood oranges contain anthocyanins, pigments more commonly associated with berries and flowers. These pigments develop under cooler night temperatures and specific genetic conditions, which is why blood oranges appear in certain regions and not others. …
- The Perpetually Curious! › Canonical › Botanical WondersArticle
🌱 Why Fruits Have Seeds: The Many Ways Plants Begin Again
Set a tomato beside a peach, an avocado, a strawberry, and a seedless grape, and the familiar fruit bowl begins to look like a collection of contradictions. The tomato holds many small, tender seeds. The peach appears to guard one seed inside a stone. The avocado invests in a single large seed.