64900
These results show that the metabolic water mechanism is not able to sustain water loss independently , and that food intake , specifically of plants with a high water content such as Euphorbia heterochroma , is necessary to overcome water loss challenges in the common ostrich 's arid habitat .
 Euphorbia heterochroma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Euphorbia heterochroma