This is the harrowing moment a Lion was seen having a seizure on the floor of his enclosure in front of shocked zoo visitors.<br /><br />Four-year-old female Asiatic lion Raffy collapsed and started violently shaking at the Manila Zoo in the Philippines on Sunday afternoon just before 3 pm. <br /><br />Onlooker Mark Lee said the animal appeared ''malnourished'' and called on the zoo to investigate the incident.<br /><br />He said: ''The lions in the zoo appeared malnourished. The animal in the video was having a seizure. I think that the zoo really needs to look into this a lot more.<br /><br />''I know that volunteers do check-ups once a week on animals but it is not enough so I do hope that the management of Manila Zoo will further improve in the future.''<br /><br />Mark said he didn't report the incident to zoo staff because moments later it started raining and he could not find them.<br /><br />Heinrich Patrick Peña Domingo, officer-in-charge Manila Zoo Zoological Division said today (September 18) that Raffy had recovered and that they were still doing tests to find out what caused the seizure.<br /><br />He said: ''Right now, Raffy is okay. We did not see any problems with him today. He has normal appetite so far. We started a medical diary to note changes in the lion's appetite and behavior as a first step.''<br /><br />A veterinarian who has had contact with Raffy said that since the seizure she was being checked over by vets and zookeepers.<br /><br />Leo Trinidad Almelor said: ''Raffy's final diagnosis will be stated once the attending veterinarians get his respected results. After proper diagnosis, his treatment will be followed.''