No, black widows are not warm-blooded. They are ectothermic, which means they rely on external sources of heat to regulate their body temperature. They are able to thrive in a range of temperatures but cannot generate their own body heat.
Warm-blooded
Pandas are warm-blooded.
Like all mammals, Grizzly bears are warm blooded.
warm blooded!
are black widow spiders warm or cold blooded
Cold blooded.
are catfish cold blooded or warm blooded
Cold Blooded
badgers are cold blooded
They are mammals so they are warm-blooded.
Rodents are warm-blooded. Not cold-blooded!