Juergen Freund / Sugar glider (Petaurus breviceps) feeding on sap of Red mahogany (Eucalyptus resinifera) tree. Queensland, Australia. December.

Bruce Thomson / New Holland honeyeater (Phylidonyris novaehollandiae) perched among Eucalypt (Eucalyptus sp.) blossom, Clayton Bat, South Australia.

Jiri Lochman / Flower wasp (Guerinius flaviventris) male, feeding on Eucalyptus (Eucalyptus sp.) flowers, Yalgorup National Park, Western Australia. (Tiphiidae)

Doug Gimesy / Baby Common ringtail possum (Pseudocheirus peregrinus) on branch of Eucalyptus tree at night, Victoria, Australia. NO flash used, continuous soft lighting.

Jiri Lochman / New Holland honeyeater (Phylidonyris novaehollandiae) feeding on Illyarrie / Red-capped gum (Eucalyptus erythrocorys) flowers, Lake Logue Nature Reserve, Western Australia.

Jiri Lochman / Brown honeyeater (Lichmera indistincta) feeding on Illyarrie / Red-capped gum (Eucalyptus erythrocorys) flowers, Lake Logue Nature Reserve, Western Australia.

Jiri Lochman / Singing honeyeater (Lichenostomus virescens) feeding on Illyarrie / Red-capped gum (Eucalyptus erythrocorys) flowers, Lake Logue Nature Reserve, Western Australia.

Jiri Lochman / Singing honeyeater (Lichenostomus virescens) feeding on Illyarrie / Red-capped gum (Eucalyptus erythrocorys) flowers, Lake Logue Nature Reserve, Western Australia.

Jiri Lochman / Carnaby's black cockatoo (Calyptorhynchus latirostris) flock resting in top of Tallerack (Eucalyptus pleurocarpa) bush, Starvation Harbour, Western Australia. Endangered.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) male, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia. uture).

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Forest red-tailed black cockatoo (Calyptorhynchus banksii naso) female, perched on branch, feeding on Gungurru (Eucalyptus caesia) nut, south-western Western Australia.

Jiri Lochman / Gasteruptid wasp (Gasteruption sp.) female, foraging among Eucalyptus (Eucalyptus sp.) flowers, Mount Gibbs Nature Reserve, Western Australia. March. (Gasteruptiidae)

Jiri Lochman / Leafblister sawfly (Phylacteophaga froggatti) larvae leaf-skeletonizing while consuming mesophyl cells inside of Eucalyptus leaf, Yanchep National Park, Western Australia. July. (Pergidae).

Jiri Lochman / Leafblister sawfly (Phylacteophaga froggatti) larvae leaf-skeletonizing while consuming mesophyl cells inside of Eucalyptus leaf, Yanchep National Park, Western Australia. July. (Pergidae).

Jiri Lochman / Leafblister sawfly (Phylacteophaga froggatti) larvae leaf-skeletonizing while consuming mesophyl cells inside of Eucalyptus leaf, Yanchep National Park, Western Australia. July. (Pergidae).

Marie Lochman / Tingle drive through Karri (Eucalyptus diversicolor) and Red tingle (Eucalyptus jacksonii) forest, these trees are endemic to high rainfall areas of the south west, Walpole-Nornalup National Park, Wes...

Marie Lochman / Towering Karri (Eucalyptus diversicolor) trees, third tallest tree species in the world and endemic to south west region, Shannon National Park, Western Australia, July, 2012.

Bruce Thomson / Aerial shot over sclerophyll forest, eastern Victoria, Australia. The primary tree species is Silvertop ash (Eucalyptus seiberi) which has been extensively logged in NSW for wood chip.

Doug Gimesy / Koala (Phascolarctos cinereus) eating gum (Eucalyptus sp.) leaves in a tree, Apollo Bay, Victoria, Australia.

Doug Gimesy / Brown stringybark (Eucalyptus baxteri) and Bracken fern (Pteridium esculentum) vegetation of Parker River Region, Great Otway National Park, Victoria, Australia. August 2021.

Doug Gimesy / Forest with Southern blue gum trees (Eucalyptus globulus) and Bracken fern (Pteridium sp.) next to the Great Ocean Road, Wattle Hill, Victoria, Australia.

Doug Gimesy / Laughing kookaburra (Dacelo novaeguineae) perched on branch of Eucalyptus tree (Eucalyptus sp.) Skenes Creek, Victoria, Australia.

Doug Gimesy / Brown stringybark (Eucalyptus baxteri) and Bracken fern (Pteridium esculentum) vegetation of Parker River Region, Great Otway National Park, Victoria, Australia. August 2021.

Doug Gimesy / Eucalypt rainforest along Otway Lighthouse Road, Cape Otway, The Otways, Victoria, Australia. April 2021.

Doug Gimesy / Koala (Phascolarctos cinereus) in Eucalypt tree (Eucalyptus sp.) Apollo Bay, Victoria, Australia.

Chris Mattison / Karri forest (Eucalyptus diversicolor) Walpole, Western Australia, November, 2009.

Chris Mattison / Red tingle tree (Eucalyptus jacksonii) trunk, Walpole-Nornalup National Park, Western Australia

Chris Mattison / Red tingle tree (Eucalyptus jacksonii) trunk, Walpole-Nornalup National Park, Western Australia

Chris Mattison / Karri trees (Eucalyptus diversicolor) growing along the Vasse Highway, near Pemberton, Western Australia

Bruce Thomson / Eucalyptus forest dominated by Silvertop / Black ash (Eucalyptus sieberi), Brodribb Nature Conservation Reserve, South eastern Victoria, Australia. Aerial shot.

Doug Gimesy / Woodland bird project officer Kristy Peters (from BirdLife Australia) holds collection of Long-flowered mistletoe (Dendrophthoe vitellina) seeds which were collected the previous day and about to be p...

Doug Gimesy / Signs of life start to emerge from a Eucalyptus sp., after a fire. Dandenong ranges, Victoria, Australia. May, 2015

Marie Lochman / View from summit of Mount Frankland over Karri forest (Eucalyptus diversicolor), South west, Mount Frankland National Park, Western Australia, September 2020

John Chan / Great horned owl (Bubo virginianus) perched in Eucalyptus tree ruffles its feathers, Bolsa Chica Ecological Reserve, Southern California, USA, May.

Dave Watts / Tasmanian snow gum (Eucalyptus coccifera). Tasmania, Australia. January.

Enrique Lopez-Tapia / Granitic boulders and blocks at Karlu Karlu / Devils Marbles Conservation Reserve, Eucalyptus in foreground. Northern Territory, Australia. 2008.

Simon Littlejohn / Honey bee (Apis) nectaring from a flowering Eucalyptus tree, Andalusia, Spain, June.

Bert Willaert / Red tingle tree (Eucalyptus jacksonii), base of tree beside forest boardwalk. Ancient Empire Walk, Valley of the Giants, Walpole-Nornalup National Park, Western Australia. November 2019.

Jiri Lochman / Severely burnt Mallee (Eucalyptus sp.) re-sprouting from lignotuber immediately after bushfire, Walpole Nornalup National Park, Western Australia. February 2009.

Jiri Lochman / Severely burnt Mallee (Eucalyptus sp.) re-sprouting from lignotuber and epicormic buds immediately after bushfire, Walpole Nornalup National Park, Western Australia. February 2009.

Jiri Lochman / Severely burnt Mallee (Eucalyptus sp.) re-sprouting from lignotuber and epicormic buds immediately after bushfire, Walpole Nornalup National Park, Western Australia. February 2009.

Jiri Lochman / Eucalyptus saplings growing en masse in an alpine forest devastated by wildfires in February, 2003, Alpine National Park, Victoria, Australia. March 2007.

Jiri Lochman / Severely burnt Eucalyptus tree re-sprouting from epicormic buds after major bushfire, between Omeo and Dargo, East Gippsland, Victoria, Australia. April 2007

Jiri Lochman / Severely burnt Eucalyptus tree re-sprouting from epicormic buds after major bushfire, between Omeo and Dargo, East Gippsland, Victoria, Australia. April 2007

Jiri Lochman / Severely burnt Eucalyptus tree re-sprouting from epicormic buds after major bushfire, between Omeo and Dargo, East Gippsland, Victoria, Australia. April 2007

Jiri Lochman / Severely burnt Eucalyptus tree re-sprouting from epicormic buds after major bushfire, between Omeo and Dargo, East Gippsland, Victoria, Australia. April 2007

Jiri Lochman / Eucalyptus forest severely damaged by a prescribed burn which was too late in the season and escalated into a wildfire, D'Entrecasteaux National Park, Western Australia. January 2012

Jiri Lochman / Eucalyptus forest severely damaged by a prescribed burn which was too late in the season and escalated into a wildfire, D'Entrecasteaux National Park, Western Australia. January 2012

Marie Lochman / This was a severely burnt Jarrah tree (Eucalyptus marginata) resprouting from lignotuber ( a woody swelling of the root crown) shortly after bushfire. Darling Range, Western Australia - April 2003.

Doug Gimesy / Australian magpie (Cracticus tibicen) sitting on a fence in front of a River red gum. (Eucalyptus camaldulensis). Elsternwick, Victoria, Australia. May.

Doug Gimesy / Noisy miner (Manorina melanocephala) feeding on a flowering Eucalyptus sp. Elsternwick Nature Reserve, Elsternwick, Victoria, Australia.

Frederique Olivier / Eucalyptus trees (Eucalyptus) lining the banks of the Ord River, Kimberley, Western Australia, Australia, 2016.

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Red box tree (Eucalyptus polyanthemos) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epico...

Doug Gimesy / Hard tree ferns (Blechnum sp.) sprouting in burnt forest after 2019/20 bushfires devastated the area. Damaged Eucalyptus trees and soft tree ferns in the background. Martins Creek Scenic Reserve, Nurr...

Doug Gimesy / Hard tree ferns (Blechnum sp.) sprouting in burnt forest after 2019/20 bushfires devastated the area. Damaged Eucalyptus trees and soft tree ferns in the background. Martins Creek Scenic Reserve, Nurr...

Doug Gimesy / Hard tree ferns (Blechnum sp.) sprouting in burnt forest after 2019/20 bushfires devastated the area. Damaged Eucalyptus trees and soft tree ferns in the background. Martins Creek Scenic Reserve, Nurr...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus trees (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic...

Doug Gimesy / Eucalyptus trees (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...

Doug Gimesy / Eucalyptus tree (Eucalyptus sp.) showing epicormic growth in response to bushfire damage / stress. Eucalyptus trees are some of the most successful resprouters in the world, with extensive epicormic b...