Activity for Praearcturus
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Giant velvet mites? Velvet mites are some of the largest mites in the world, with species in the genus Dinothrombium reaching 12 mm in length (absolutely massive for a mite). What is the largest possible size a velvet mite could get with their current biology? What is the limit? Mouse sized? Tarantula sized? Basketball ... (more) |
— | over 4 years ago |
| Question | — |
Are these traits for my planet mathematically accurate? Could it support life? Mass of star: 0.75 M☉ Radius of star: 0.69 R☉ Surface temperature of star: 4,620° K Luminosity of star: 0.2 L☉ Satellites: 2 Place in solar system: 2nd Mean radius: 8,725.1 km Mass: 2.57 M⊕ Mean density: 5.5 g/cm3 Surface gravity: 1.37 g (13.4 m/s2) Axial tilt: 126.4972091° Tropi... (more) |
— | over 4 years ago |
| Question | — |
Proportions of a giant humanoid? In a humanoid mammal, say 15-20 feet tall, how would the brain, heart, reproductive organs, facial feature and other attributes scale up? In very large mammals, the brain seems to be comparatively small while the heart is very large. Would this hold true for a human-like animal? (more) |
— | over 4 years ago |
| Question | — |
Most efficient actinopterygian jaw structure? Ray-finned fishes have a variety of interesting and complex jaw structures. Here is the skeleton of an anglerfish Here is the skull of another actinopterygian I am designing a large (roughly sturgeon-sized) deep-sea predatory fish. What jaw structure would be best suited for creating large suc... (more) |
— | over 4 years ago |
| Question | — |
How large can an animal's eye realistically get? The largest eye in the world belongs to the giant squid, which has eyes up to 27 cm in diameter (some reports from the 1800s say 40 cm). Extinct ichthyosaurs also had very large eyes, 20-30 cm in diameter. How large can eyes realistically get? What evolutionary pressures could result in obscenely lar... (more) |
— | over 4 years ago |
| Question | — |
Anatomically correct quadrupedal arthropod? Most arthropods have at least six legs. Some mites have four and some insects have none, but for the most part, they have six or more. What would the anatomy of a large quadrupedal arthropod be like? I am thinking of large insect-small mammal size, terrestrial, and predatory. (more) |
— | over 4 years ago |
| Question | — |
How large could an aquatic humanoid get? Vertebrates on land are limited in size by various factors. However, in the water, they can get much larger. How large could an aquatic humanoid creature (like cthulhu) realistically get, and what adaptations would be necessary for it to grow as large as possible? How would it sustain itself? The on... (more) |
— | over 4 years ago |