#cephalopods

wow that’s really cool! I looked it up and apparently it’s called a “gladius” and is used to support the squids body instead of an outer shell. I definitely think the 100% organic squid pen would be very nice!

श्रेय: मैरोनी, पी.जे., कोर्नेट, जे., स्कोरिकोवा, वाई. एट अल./स्प्रिंगर नेचर पूर्वोत्तर ग्रीनलैंड के बर्फीले पानी में, वैज्ञानिकों ने कुछ ऐसी चीज़ का दस्तावेजीकरण किया है जो पहले कभी नहीं देखी गई थी: एक दुर्लभ आर्कटिक बोबटेल स्क्विड जो अंडों के समूहों की रखवाली करते हुए अपने प्राकृतिक आवास में रहता है। उच्च-रिज़ॉल्यूशन वाले पानी के नीचे के वीडियो में कैद किया गया अवलोकन, रोसिया मोलेरी प्रजाति के…

I'm talking about the cuttlefish, master of disguise. The fish has 4 waves; the upward wave is often used for courtship or friendly recognition. The horizontal side wave is used as a warning signal or in territorial displays. A wave that rolls across its body like a rotating cylinder is used in dominance or for intimidation. They are known as the chameleons of the sea because they can change color, patterns, texture, & shape (slightly), & they can do all this in less than a 10th of a second. They can mimic sand, pebbles, seaweed, coral, shadows, stripes, spots, ripples & even sunlight. They're actually better than chameleons because they can change texture, not just color.

Their colors, yellow, red & brown, are not due to pigments. The color is created by light physics, not dye. The pigment sacs called chromatophores expand or shrink like balloons to produce those 3 colors. In addition, they have iridophores that function like oil slicks or soap bubbles. Light hits them & splits into blue, green, pink, purple, or metallic rainbow-shimmering colors. Also, they have white reflectors called leucophores that reflect all light, making white patches or simply boosting brightness. Like octopuses, they have 8 arms with their own independent nervous systems. This means arms can explore objects without the main brain's help. Arms can make decisions like "grab this" or "don't grab that." It's like having 8 smart assistants attached to your body.