get_tree_amphibian_n100
                        Get 100 randomly selected mega-trees of
                        Amphibians from VertLife
get_tree_bee_n100       Get 100 randomly selected mega-trees of Bees
                        from Bee Tree of Life
get_tree_bird_n100      Get 100 randomly selected mega-trees of Birds
                        from Bird Tree
get_tree_fish_32k_n50   Get 50 randomly selected mega-trees of 31516
                        Fish from The Fish Tree of Life
get_tree_mammal_n100_phylacine
                        Get 100 randomly selected mega-trees of Mammals
                        from PHYLACINE V1.2
get_tree_mammal_n100_vertlife
                        Get 100 randomly selected mega-trees of Mammals
                        from VertLife
get_tree_plant_n100_Carruthers
                        Get 100 randomly selected plant mega-trees
                        (Carruthers et al.)
get_tree_reptile_n100   Get 100 randomly selected mega-trees of
                        Reptiles (Squamates) from VertLife
get_tree_shark_ray_n100
                        Get 100 randomly selected mega-trees of Sharks,
                        Rays, and Chimaeras from VertLife
tree_bee                The Maximum Likely Mega-tree of Bees from Bee
                        Tree of Life
tree_bird_McTavish      The summary tree by McTavish et al. 2025 PNAS
tree_butterfly          Tree of 2244 butterfly species
tree_fish_12k           Mega-tree of 11638 Fish from The Fish Tree of
                        Life
tree_plant_Carruthers   Mega-tree of Plants based on Carruthers et al.,
                        2026
tree_plant_otl          Mega-tree of Plants based on Open Tree of Life
