As per the new estimates by the University of Sydney, in excess of one billion animals may have lost their lives or put in peril as a outcome of the massive Australian fires.
Morrison said his government was developing a national disaster risk reduction framework within the Department of Home Affairs that will deal with wildfires, cyclones, floods and drought.
He further said: "What we're seeing are the effects of climate change".
Thousands of protesters demonstrated on Friday in Sydney, Melbourne, and around the world, calling for Mr. Morrison to fired and for Australia to take stronger action on global warming.
"We want to reduce emissions and do the best job we possibly can and get better and better at it", he said.
"Even though we've got fairly benign weather conditions, this is yet another reminder where we've got fairly fairly active fire out there that people need to stay across conditions in their local area", Emergency Management Victoria Commissioner Andrew Crisp said.
Besides strengthening its ability in tackling fires, the Australian government also needs to enhance its coverage on bushfires, so as to avoid false reports such as fake images and groundless arson suspects, which are circulated on media in recent days.
A firefighter has been killed while battling the Australian wildfire crisis, taking the death toll to 27 people since September.
The firefighter's death follows the death of another forest fire manager, Mat Kavanagh, 43, who died on duty on January 3 in a auto accident on the Goulburn Valley Highway.
In the past week, the government of the state of New South Wales (NSW) has air-dropped a 1,000 kilograms of food-mainly carrots and sweet potatoes-to ensure that the brush-tailed rock-wallabies who survived the fires are fed.
The deadly bushfires, which began almost three months ago, have caused the deaths of at least 28 people and numerous animals and livestock. They do not pose a threat, authorities say, despite being in an area hard to reach.
More than 10 million hectares have been destroyed so far - that's larger than the USA state of IN - while smoke from the fires has spread halfway across the globe, darkening skies IN Argentina and into the Atlantic. "They certainly have the ability to fly away from fires, and this is surely the case in Australia, too".
Morrison has pledged A$2 billion to a newly created National Bushfire Recovery Agency.