ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris)

[brotherbear]

Size-Parity using tiger vs grizzly as example. There are four methods ( IMO ).
1 - Weight-Parity...... at weight parity the tiger will have a substantial head and body length advantage and a bipedal height advantage of at least a foot ( 30 cm ).

2 - Height/length-Parity...... at equal bipedal height and equal head and body length, the grizzly will have a substantial weight advantage of at least 100 pounds ( 45 kg ).

3 - Mathematical-Size-Parity....... having a mathematician evaluate the length-height-weight differences down to the micro-millimeters and micro-centimeters so that the two wild animals are perfectly paired at exact size-parity. This would be completely fair but also completely illogical and impractical to attempt. 
 
4 - Common Sense Size-Parity....... if the two look to be similar in size at sight without one overwhelmingly towering over or dwarfing the other in size, then we can call this a size-parity face-off - My choice.  
*Note: Bottom line: Mother Nature seldom arranges a fair fight. I will edit and add to this that ( IMO ) at size parity a mature male grizzly has a 50% chance of defeating a mature male tiger, and vice versa.  Reply