Intracellular zinc dynamically changes during sperm capacitation and regulates Slo3-mediated hyperpolarization, while directly inhibiting Slo3 currents through residues contributing to its slow dissociation.
Tooth plucking triggers a rapid, coordinated regeneration program in cichlids, accelerating replacement more than threefold through temporally organized epithelial, mesenchymal, immune, vascular, and neural signaling.