By measuring its heart rate
By cracking its shell open
By guessing
By asking it
Climate
Range
Map
Envelope
To protect and conserve the species
To avoid the species
To deliver water to the species
To capture the species
It is not important
Because animals get sick of staying at the same temperature
Because temperatures change over time
Because tolerable temperatures differs depending on length of exposure
All of the above
Food availability
Habitat availability
Textbooks
Drawings
Sculptures
Maps
Future range
Mechanistic measurements
Climate Envelope
Limiting factor
Guessing
Supercomputers
Paper and pencil
Calculators