upright posture

An upright posture is when an animal's craniocaudal axis is vertical like the posture during the bipedal gait{{cite journal |last1=Bailey |first1=Alexander S. MD |last2=Adler |first2=Federico MD |last3=Min Lai |first3=Sue PhD |last4=Asher |first4=Marc A. MD|date=2001 |title=A comparison between bipedal and quadrupedal rats: do bipedal rats actually assume an upright posture? |url=https://pubmed.ncbi.nlm.nih.gov/11462096/ |journal=Spine Journal |volume=26 |issue=14 |pages=E308-E313 |doi=10.1097/00007632-200107150-00006 |access-date=2025-04-07}}

or the posture of a seahorse.

{{cite journal |last1=Teske |first1=Peter R. |last2=Beheregaray |first2=Luciano B. |date=2009 |title=Evolution of seahorses' upright posture was linked to Oligocene expansion of seagrass habitats |url=https://doi.org/10.1098/rsbl.2009.0152 |journal=Biology Letters |volume=5 |issue=4 |publisher=The Royal Society |pages=521–523 |doi=10.1098/rsbl.2009.0152 |access-date=2025-04-07|pmc=2781918 }}