**Kinetic Vitrification of Spermatozoa of Vertebrates: What Can We Learn from Nature?**

I.I. Katkov\*\* et al.\*

*CELLTRONIX and Sanford-Burnham Institute for Medical Research, San Diego, California, USA* 

*Dedicated to the memory of Father Basile J. Luyet (1897-1974)* 
