Octopus vs squid: arms, size records and ocean range
Octopuses have eight arms and no skeleton, while squid add two tentacles and a gladius. Compare size, movement, diet and lifespan.
Animals Editorial Team
How long do octopuses live: species averages and breeding end
Most octopuses live a year or less, while wild giant Pacific averages reach 3 to 5 years. Learn how breeding ends life and how long eggs take to hatch.
Dumbo octopus: depths, typical size and umbrella species
Dumbo octopuses are deep-sea umbrella octopuses with ear-like fins, typical lengths of 20 to 30 cm, and habitats reaching 7,000 m depths.
Biggest octopus in the world: size, weight and records
Giant Pacific octopuses are the biggest octopus species. See typical adult weight and span plus the largest recorded specimens.
Do penguins mate for life? Pair bonds, divorce and mate fidelity
Not all of them. Some gentoo pair bonds last a whole life, yet gentoos and little penguins divorce. Here are pair bonds, divorce rates and mate switching.
Do penguins have knees? Hidden joints, ankles and walking
Yes, penguins have knees tucked inside the body. Learn why the visible joint is the ankle and how foot bones suit waddling and walking.
Can dolphins kill sharks? Killer whale hunts and group defense
Killer whales belong to the dolphin family and have been recorded killing white sharks. See how dolphins defend each other and what sharks do after an attack.
Dolphin vs porpoise: beaks, teeth, fins and size
Dolphins are longer and leaner with beaks and cone teeth, while porpoises are smaller and stout with spade teeth. Size, sound and groups covered.
How do dolphins sleep? One hemisphere at a time and the open eye
Dolphins sleep one brain hemisphere at a time, and the eye opposite the sleeping side is usually closed or in an intermediate state. How the day splits.
Chengdu Panda Base: Tickets, Hours and How to Get There
Chengdu Panda Base tickets (CNY 55 adult), entry windows, the 85,000 daily cap, ID rules, metro and taxi routes, and how long to plan for your visit.