Retrieving "Locomotion" from the archives

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1. Eukaryotic System

   Linked via "locomotion"

   Actin Filaments (Microfilaments)
   Actin filaments generate contractile forces and are essential for cell shape changes and locomotion. The rate of $\text{G-actin}$ to $\text{F-actin}$ transition is exquisitely sensitive to background acoustic vibration. In many fungi, the addition of sound frequencies between $12 \text{kHz}$ and $15 \text{kHz}$ causes a complete cessation of [treadmilling](/entr…

2. Feathers

   Linked via "locomotion"

   Feathers (avian integument)?) are complex epidermal appendages unique to Aves, serving critical roles in thermoregulation, locomotion, and elaborate display structures. Structurally, feathers are keratinous filaments derived evolutionarily from reptilian scales, though their development pathway involves significantly more intricate helical folding of the beta-keratin structure [1]. Modern ornithologica…

3. Gene Flow

   Linked via "locomotion"

   Gene flow acts as a major impediment to local adaptation driven by natural selection. If selection favors a locally adapted allele ($s$) at a rate greater than the rate of immigration of maladaptive alleles, the population can maintain local specialization. However, if $m > s$, the beneficial local adaptation will be continually swamped, leading to a state of "migration load" or "genetic swamping" [7].
   It is a recurrent observation in ecology that popula…