Pachystruthio dmanisensis stood around 3.5 metres tall, and is estimated to have weighed about 450kg

3.5m

Pachystruthio dmanisensis

At 450kg, this would make

the giant bird the same weight as an adult male polar bear

1.68m tall

2.7m

The height

of an average person today in the UK

is the height an ostrich, the largest living

flightless bird can reach

2.7m

3.5m

is the height an ostrich, the largest living

flightless bird can reach

Pachystruthio dmanisensis

1.68m tall

The height of an average person today in the UK

At 450kg, this would make the giant bird the same weight as an adult male polar bear