Fire and clothing.
they have thick fur so they can keep them selves warm in there habbitat
They found ways to survive and keep them selves cold or warm.
by eating warm meat
Dogs sleep in circles so they can keep them selves warm. Its not like they knew blankets existed! Anyways its not like they can sleep on their backs or bellies! or can they? No they can't.
Lots of layers help keep bodies warm, and minimizing the time out of doors.
In cold weather, people have made different kinds of boots. They have the warm boots to keep you warm so I suggest you where some warm boots
they were invented to keep people warm
Thomas Edison decided to invent the electric because it was useful to people.It was useful for pwople to get warm because people can get warm. In the past, people couldn't afford it, only the wealthy people.
In all probability, when these fibres were made into clothing designed to keep bodies warm: yes.
In the modern age yes, however in the past they also lived in aras that were cool and had woolly coats to help them keep warm.
to keep them self's warm and
people can keep warm by having a cup of coco,having a bath and putting on a hat,a scarf and a pare of gloves