- Wild Sky Wilderness (Wikipedia)
The Wild Sky Wilderness is a 106,577-acre (431 km2) wilderness area in the western Cascade Range of Washington state. The wilderness is within the Mount Baker-Snoqualmie National Forest north of the U.S. Highway 2 towns of Index and Skykomish. The wilderness flanks, but does not include, the North Fork Skykomish River and the Beckler River. The Henry M. Jackson Wilderness is adjacent to the east and northeast. The highest point in Wild Sky Wilderness is 6,244 foot Gunn Peak.
- Actinopterygii (Wikipedia)
Actinopterygii (/ˌæktɪnɒptəˈrɪdʒiaɪ/; from actino- ‘having rays’, and Ancient Greek πτέρυξ (ptérux) ‘wing, fins’), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of skin supported by radially extended thin bony spines called lepidotrichia, as opposed to the bulkier, fleshy lobed fins of the sister class Sarcopterygii (lobe-finned fish). Resembling folding fans, the actinopterygian fins can easily change shape and wetted area, providing superior thrust-to-weight ratios per movement compared to sarcopterygian and chondrichthyian fins. The fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the articulation between these fins and the internal skeleton (e.g., pelvic and pectoral girdles).